Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction
One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yu, Han [verfasserIn] Ma, Lin [verfasserIn] Wada, Kenji [verfasserIn] Kurihara, Ryohsuke [verfasserIn] Feng, Qi [verfasserIn] Uemura, Shinobu [verfasserIn] Isoda, Kyosuke [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2023 |
|---|
| Schlagwörter: |
|---|
| Übergeordnetes Werk: |
Enthalten in: Catalysis today - Amsterdam : Elsevier, 1987, 411 |
|---|---|
| Übergeordnetes Werk: |
volume:411 |
| DOI / URN: |
10.1016/j.cattod.2022.07.007 |
|---|
| Katalog-ID: |
ELV065610458 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | ELV065610458 | ||
| 003 | DE-627 | ||
| 005 | 20231117093119.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231117s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.cattod.2022.07.007 |2 doi | |
| 035 | |a (DE-627)ELV065610458 | ||
| 035 | |a (ELSEVIER)S0920-5861(22)00280-2 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 660 |a 540 |q VZ |
| 084 | |a 35.17 |2 bkl | ||
| 100 | 1 | |a Yu, Han |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| 264 | 1 | |c 2023 | |
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 520 | |a One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. | ||
| 650 | 4 | |a Urea | |
| 650 | 4 | |a Multi-alkylation | |
| 650 | 4 | |a Iridium | |
| 650 | 4 | |a Titania | |
| 650 | 4 | |a SMSI | |
| 650 | 4 | |a Green chemistry | |
| 700 | 1 | |a Ma, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Wada, Kenji |e verfasserin |4 aut | |
| 700 | 1 | |a Kurihara, Ryohsuke |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Uemura, Shinobu |e verfasserin |4 aut | |
| 700 | 1 | |a Isoda, Kyosuke |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Catalysis today |d Amsterdam : Elsevier, 1987 |g 411 |h Online-Ressource |w (DE-627)320504255 |w (DE-600)2012626-8 |w (DE-576)096704268 |x 1873-4308 |7 nnns |
| 773 | 1 | 8 | |g volume:411 |
| 912 | |a GBV_USEFLAG_U | ||
| 912 | |a GBV_ELV | ||
| 912 | |a SYSFLAG_U | ||
| 912 | |a SSG-OLC-PHA | ||
| 912 | |a GBV_ILN_20 | ||
| 912 | |a GBV_ILN_22 | ||
| 912 | |a GBV_ILN_23 | ||
| 912 | |a GBV_ILN_24 | ||
| 912 | |a GBV_ILN_31 | ||
| 912 | |a GBV_ILN_32 | ||
| 912 | |a GBV_ILN_40 | ||
| 912 | |a GBV_ILN_60 | ||
| 912 | |a GBV_ILN_62 | ||
| 912 | |a GBV_ILN_65 | ||
| 912 | |a GBV_ILN_69 | ||
| 912 | |a GBV_ILN_70 | ||
| 912 | |a GBV_ILN_73 | ||
| 912 | |a GBV_ILN_74 | ||
| 912 | |a GBV_ILN_90 | ||
| 912 | |a GBV_ILN_95 | ||
| 912 | |a GBV_ILN_100 | ||
| 912 | |a GBV_ILN_101 | ||
| 912 | |a GBV_ILN_105 | ||
| 912 | |a GBV_ILN_110 | ||
| 912 | |a GBV_ILN_150 | ||
| 912 | |a GBV_ILN_151 | ||
| 912 | |a GBV_ILN_187 | ||
| 912 | |a GBV_ILN_213 | ||
| 912 | |a GBV_ILN_224 | ||
| 912 | |a GBV_ILN_230 | ||
| 912 | |a GBV_ILN_370 | ||
| 912 | |a GBV_ILN_602 | ||
| 912 | |a GBV_ILN_702 | ||
| 912 | |a GBV_ILN_2001 | ||
| 912 | |a GBV_ILN_2003 | ||
| 912 | |a GBV_ILN_2004 | ||
| 912 | |a GBV_ILN_2005 | ||
| 912 | |a GBV_ILN_2007 | ||
| 912 | |a GBV_ILN_2009 | ||
| 912 | |a GBV_ILN_2010 | ||
| 912 | |a GBV_ILN_2011 | ||
| 912 | |a GBV_ILN_2014 | ||
| 912 | |a GBV_ILN_2015 | ||
| 912 | |a GBV_ILN_2020 | ||
| 912 | |a GBV_ILN_2021 | ||
| 912 | |a GBV_ILN_2025 | ||
| 912 | |a GBV_ILN_2026 | ||
| 912 | |a GBV_ILN_2027 | ||
| 912 | |a GBV_ILN_2034 | ||
| 912 | |a GBV_ILN_2044 | ||
| 912 | |a GBV_ILN_2048 | ||
| 912 | |a GBV_ILN_2049 | ||
| 912 | |a GBV_ILN_2050 | ||
| 912 | |a GBV_ILN_2055 | ||
| 912 | |a GBV_ILN_2056 | ||
| 912 | |a GBV_ILN_2059 | ||
| 912 | |a GBV_ILN_2061 | ||
| 912 | |a GBV_ILN_2064 | ||
| 912 | |a GBV_ILN_2106 | ||
| 912 | |a GBV_ILN_2110 | ||
| 912 | |a GBV_ILN_2111 | ||
| 912 | |a GBV_ILN_2112 | ||
| 912 | |a GBV_ILN_2122 | ||
| 912 | |a GBV_ILN_2129 | ||
| 912 | |a GBV_ILN_2143 | ||
| 912 | |a GBV_ILN_2152 | ||
| 912 | |a GBV_ILN_2153 | ||
| 912 | |a GBV_ILN_2190 | ||
| 912 | |a GBV_ILN_2232 | ||
| 912 | |a GBV_ILN_2336 | ||
| 912 | |a GBV_ILN_2470 | ||
| 912 | |a GBV_ILN_2507 | ||
| 912 | |a GBV_ILN_4035 | ||
| 912 | |a GBV_ILN_4037 | ||
| 912 | |a GBV_ILN_4112 | ||
| 912 | |a GBV_ILN_4125 | ||
| 912 | |a GBV_ILN_4242 | ||
| 912 | |a GBV_ILN_4249 | ||
| 912 | |a GBV_ILN_4251 | ||
| 912 | |a GBV_ILN_4305 | ||
| 912 | |a GBV_ILN_4306 | ||
| 912 | |a GBV_ILN_4307 | ||
| 912 | |a GBV_ILN_4313 | ||
| 912 | |a GBV_ILN_4322 | ||
| 912 | |a GBV_ILN_4323 | ||
| 912 | |a GBV_ILN_4324 | ||
| 912 | |a GBV_ILN_4326 | ||
| 912 | |a GBV_ILN_4333 | ||
| 912 | |a GBV_ILN_4334 | ||
| 912 | |a GBV_ILN_4338 | ||
| 912 | |a GBV_ILN_4393 | ||
| 912 | |a GBV_ILN_4700 | ||
| 936 | b | k | |a 35.17 |j Katalyse |q VZ |
| 951 | |a AR | ||
| 952 | |d 411 | ||
| author_variant |
h y hy l m lm k w kw r k rk q f qf s u su k i ki |
|---|---|
| matchkey_str |
article:18734308:2023----::ovnfemlilyainfraihloosaayebttnaupreiiimaaytih |
| hierarchy_sort_str |
2023 |
| bklnumber |
35.17 |
| publishDate |
2023 |
| allfields |
10.1016/j.cattod.2022.07.007 doi (DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 DE-627 ger DE-627 rda eng 660 540 VZ 35.17 bkl Yu, Han verfasserin aut Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. Urea Multi-alkylation Iridium Titania SMSI Green chemistry Ma, Lin verfasserin aut Wada, Kenji verfasserin aut Kurihara, Ryohsuke verfasserin aut Feng, Qi verfasserin aut Uemura, Shinobu verfasserin aut Isoda, Kyosuke verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 411 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:411 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 Katalyse VZ AR 411 |
| spelling |
10.1016/j.cattod.2022.07.007 doi (DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 DE-627 ger DE-627 rda eng 660 540 VZ 35.17 bkl Yu, Han verfasserin aut Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. Urea Multi-alkylation Iridium Titania SMSI Green chemistry Ma, Lin verfasserin aut Wada, Kenji verfasserin aut Kurihara, Ryohsuke verfasserin aut Feng, Qi verfasserin aut Uemura, Shinobu verfasserin aut Isoda, Kyosuke verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 411 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:411 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 Katalyse VZ AR 411 |
| allfields_unstemmed |
10.1016/j.cattod.2022.07.007 doi (DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 DE-627 ger DE-627 rda eng 660 540 VZ 35.17 bkl Yu, Han verfasserin aut Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. Urea Multi-alkylation Iridium Titania SMSI Green chemistry Ma, Lin verfasserin aut Wada, Kenji verfasserin aut Kurihara, Ryohsuke verfasserin aut Feng, Qi verfasserin aut Uemura, Shinobu verfasserin aut Isoda, Kyosuke verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 411 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:411 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 Katalyse VZ AR 411 |
| allfieldsGer |
10.1016/j.cattod.2022.07.007 doi (DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 DE-627 ger DE-627 rda eng 660 540 VZ 35.17 bkl Yu, Han verfasserin aut Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. Urea Multi-alkylation Iridium Titania SMSI Green chemistry Ma, Lin verfasserin aut Wada, Kenji verfasserin aut Kurihara, Ryohsuke verfasserin aut Feng, Qi verfasserin aut Uemura, Shinobu verfasserin aut Isoda, Kyosuke verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 411 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:411 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 Katalyse VZ AR 411 |
| allfieldsSound |
10.1016/j.cattod.2022.07.007 doi (DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 DE-627 ger DE-627 rda eng 660 540 VZ 35.17 bkl Yu, Han verfasserin aut Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. Urea Multi-alkylation Iridium Titania SMSI Green chemistry Ma, Lin verfasserin aut Wada, Kenji verfasserin aut Kurihara, Ryohsuke verfasserin aut Feng, Qi verfasserin aut Uemura, Shinobu verfasserin aut Isoda, Kyosuke verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 411 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:411 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 Katalyse VZ AR 411 |
| language |
English |
| source |
Enthalten in Catalysis today 411 volume:411 |
| sourceStr |
Enthalten in Catalysis today 411 volume:411 |
| format_phy_str_mv |
Article |
| bklname |
Katalyse |
| institution |
findex.gbv.de |
| topic_facet |
Urea Multi-alkylation Iridium Titania SMSI Green chemistry |
| dewey-raw |
660 |
| isfreeaccess_bool |
false |
| container_title |
Catalysis today |
| authorswithroles_txt_mv |
Yu, Han @@aut@@ Ma, Lin @@aut@@ Wada, Kenji @@aut@@ Kurihara, Ryohsuke @@aut@@ Feng, Qi @@aut@@ Uemura, Shinobu @@aut@@ Isoda, Kyosuke @@aut@@ |
| publishDateDaySort_date |
2023-01-01T00:00:00Z |
| hierarchy_top_id |
320504255 |
| dewey-sort |
3660 |
| id |
ELV065610458 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">ELV065610458</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20231117093119.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">231117s2023 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.cattod.2022.07.007</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV065610458</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0920-5861(22)00280-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="a">540</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">35.17</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Yu, Han</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2023</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Urea</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Multi-alkylation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Iridium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Titania</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">SMSI</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Green chemistry</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ma, Lin</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wada, Kenji</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kurihara, Ryohsuke</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Feng, Qi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Uemura, Shinobu</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Isoda, Kyosuke</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Catalysis today</subfield><subfield code="d">Amsterdam : Elsevier, 1987</subfield><subfield code="g">411</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)320504255</subfield><subfield code="w">(DE-600)2012626-8</subfield><subfield code="w">(DE-576)096704268</subfield><subfield code="x">1873-4308</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:411</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_101</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_187</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2001</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2007</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2009</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2026</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2055</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2106</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2232</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2470</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4307</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">35.17</subfield><subfield code="j">Katalyse</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">411</subfield></datafield></record></collection>
|
| author |
Yu, Han |
| spellingShingle |
Yu, Han ddc 660 bkl 35.17 misc Urea misc Multi-alkylation misc Iridium misc Titania misc SMSI misc Green chemistry Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| authorStr |
Yu, Han |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)320504255 |
| format |
electronic Article |
| dewey-ones |
660 - Chemical engineering 540 - Chemistry & allied sciences |
| delete_txt_mv |
keep |
| author_role |
aut aut aut aut aut aut aut |
| collection |
elsevier |
| remote_str |
true |
| illustrated |
Not Illustrated |
| issn |
1873-4308 |
| topic_title |
660 540 VZ 35.17 bkl Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction Urea Multi-alkylation Iridium Titania SMSI Green chemistry |
| topic |
ddc 660 bkl 35.17 misc Urea misc Multi-alkylation misc Iridium misc Titania misc SMSI misc Green chemistry |
| topic_unstemmed |
ddc 660 bkl 35.17 misc Urea misc Multi-alkylation misc Iridium misc Titania misc SMSI misc Green chemistry |
| topic_browse |
ddc 660 bkl 35.17 misc Urea misc Multi-alkylation misc Iridium misc Titania misc SMSI misc Green chemistry |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
cr |
| hierarchy_parent_title |
Catalysis today |
| hierarchy_parent_id |
320504255 |
| dewey-tens |
660 - Chemical engineering 540 - Chemistry |
| hierarchy_top_title |
Catalysis today |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 |
| title |
Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| ctrlnum |
(DE-627)ELV065610458 (ELSEVIER)S0920-5861(22)00280-2 |
| title_full |
Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| author_sort |
Yu, Han |
| journal |
Catalysis today |
| journalStr |
Catalysis today |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
600 - Technology 500 - Science |
| recordtype |
marc |
| publishDateSort |
2023 |
| contenttype_str_mv |
zzz |
| author_browse |
Yu, Han Ma, Lin Wada, Kenji Kurihara, Ryohsuke Feng, Qi Uemura, Shinobu Isoda, Kyosuke |
| container_volume |
411 |
| class |
660 540 VZ 35.17 bkl |
| format_se |
Elektronische Aufsätze |
| author-letter |
Yu, Han |
| doi_str_mv |
10.1016/j.cattod.2022.07.007 |
| dewey-full |
660 540 |
| author2-role |
verfasserin |
| title_sort |
solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| title_auth |
Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| abstract |
One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. |
| abstractGer |
One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. |
| abstract_unstemmed |
One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation. |
| collection_details |
GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 |
| title_short |
Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction |
| remote_bool |
true |
| author2 |
Ma, Lin Wada, Kenji Kurihara, Ryohsuke Feng, Qi Uemura, Shinobu Isoda, Kyosuke |
| author2Str |
Ma, Lin Wada, Kenji Kurihara, Ryohsuke Feng, Qi Uemura, Shinobu Isoda, Kyosuke |
| ppnlink |
320504255 |
| mediatype_str_mv |
c |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| doi_str |
10.1016/j.cattod.2022.07.007 |
| up_date |
2024-07-06T23:37:59.312Z |
| _version_ |
1803874813150756864 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">ELV065610458</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20231117093119.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">231117s2023 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.cattod.2022.07.007</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV065610458</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0920-5861(22)00280-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="a">540</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">35.17</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Yu, Han</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Solvent-free multi-alkylation of urea with alcohols catalyzed by titania-supported iridium catalyst with a strong metal-support interaction</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2023</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">One of the primary responsibilities of chemists is the development of environmentally friendly and economically efficient catalytic systems to minimize pollution and reduce energy and raw material consumption. Here we report the titania-supported iridium-catalyzed multi-alkylation of urea by various alcohols under solvent-free conditions, where strong metal-support interaction plays a dominant role in catalyst activity. Experiments revealed that titania supports significantly affect the catalysis. Compared with the iridium catalyst supported on rutile, anatase-supported ones were more active in N-alkylation, resulting in higher yields of the desired products. By increasing the loading of iridium on titania support, the activity of the catalyst was effectively promoted. The hydrogen temperature-programmed reduction and X-ray photoelectron spectra showed that the amount of iridium loading significantly affected the reduction behavior and valence state of iridium, indicating the significant effects of the strong metal-support interaction on the activity of the catalyst. The catalyst could be used at least five times without significant inactivation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Urea</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Multi-alkylation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Iridium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Titania</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">SMSI</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Green chemistry</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ma, Lin</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wada, Kenji</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kurihara, Ryohsuke</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Feng, Qi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Uemura, Shinobu</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Isoda, Kyosuke</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Catalysis today</subfield><subfield code="d">Amsterdam : Elsevier, 1987</subfield><subfield code="g">411</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)320504255</subfield><subfield code="w">(DE-600)2012626-8</subfield><subfield code="w">(DE-576)096704268</subfield><subfield code="x">1873-4308</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:411</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_101</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_187</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2001</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2007</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2009</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2026</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2055</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2106</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2232</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2470</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4307</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">35.17</subfield><subfield code="j">Katalyse</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">411</subfield></datafield></record></collection>
|
| score |
7.3998175 |