Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments

Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the...
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Autor*in:	Jacobs, Gary [verfasserIn] Ricote, Sandrine [verfasserIn] Graham, Uschi M. [verfasserIn] Davis, Burtron H. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2014

Schlagwörter:	Ceria Pt Pt/ceria Type II bridging OH groups Formate Water–gas shift

Übergeordnetes Werk:	Enthalten in: Catalysis letters - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988, 145(2014), 2 vom: 22. Nov., Seite 533-540
Übergeordnetes Werk:	volume:145 ; year:2014 ; number:2 ; day:22 ; month:11 ; pages:533-540

Links:	Volltext

DOI / URN:	10.1007/s10562-014-1440-0

Katalog-ID:	SPR011342803

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520			\|a Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract
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700	1		\|a Ricote, Sandrine \|e verfasserin \|4 aut
700	1		\|a Graham, Uschi M. \|e verfasserin \|4 aut
700	1		\|a Davis, Burtron H. \|e verfasserin \|4 aut
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952			\|d 145 \|j 2014 \|e 2 \|b 22 \|c 11 \|h 533-540

Indexfelder

author_variant	g j gj s r sr u m g um umg b h d bh bhd
matchkey_str	article:1572879X:2014----::otmeaueaegshfratoitrcinosemncwtcraraewtdfeetx
hierarchy_sort_str	2014
bklnumber	35.17
publishDate	2014
allfields	10.1007/s10562-014-1440-0 doi (DE-627)SPR011342803 (SPR)s10562-014-1440-0-e DE-627 ger DE-627 rakwb eng 540 660 ASE 35.17 bkl Jacobs, Gary verfasserin aut Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213 Ricote, Sandrine verfasserin aut Graham, Uschi M. verfasserin aut Davis, Burtron H. verfasserin aut Enthalten in Catalysis letters Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988 145(2014), 2 vom: 22. Nov., Seite 533-540 (DE-627)306717638 (DE-600)1501518-X 1572-879X nnns volume:145 year:2014 number:2 day:22 month:11 pages:533-540 https://dx.doi.org/10.1007/s10562-014-1440-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 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_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 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_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 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_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 ASE AR 145 2014 2 22 11 533-540
spelling	10.1007/s10562-014-1440-0 doi (DE-627)SPR011342803 (SPR)s10562-014-1440-0-e DE-627 ger DE-627 rakwb eng 540 660 ASE 35.17 bkl Jacobs, Gary verfasserin aut Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213 Ricote, Sandrine verfasserin aut Graham, Uschi M. verfasserin aut Davis, Burtron H. verfasserin aut Enthalten in Catalysis letters Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988 145(2014), 2 vom: 22. Nov., Seite 533-540 (DE-627)306717638 (DE-600)1501518-X 1572-879X nnns volume:145 year:2014 number:2 day:22 month:11 pages:533-540 https://dx.doi.org/10.1007/s10562-014-1440-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 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_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 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_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 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_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 ASE AR 145 2014 2 22 11 533-540
allfields_unstemmed	10.1007/s10562-014-1440-0 doi (DE-627)SPR011342803 (SPR)s10562-014-1440-0-e DE-627 ger DE-627 rakwb eng 540 660 ASE 35.17 bkl Jacobs, Gary verfasserin aut Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213 Ricote, Sandrine verfasserin aut Graham, Uschi M. verfasserin aut Davis, Burtron H. verfasserin aut Enthalten in Catalysis letters Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988 145(2014), 2 vom: 22. Nov., Seite 533-540 (DE-627)306717638 (DE-600)1501518-X 1572-879X nnns volume:145 year:2014 number:2 day:22 month:11 pages:533-540 https://dx.doi.org/10.1007/s10562-014-1440-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 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_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 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_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 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_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 ASE AR 145 2014 2 22 11 533-540
allfieldsGer	10.1007/s10562-014-1440-0 doi (DE-627)SPR011342803 (SPR)s10562-014-1440-0-e DE-627 ger DE-627 rakwb eng 540 660 ASE 35.17 bkl Jacobs, Gary verfasserin aut Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213 Ricote, Sandrine verfasserin aut Graham, Uschi M. verfasserin aut Davis, Burtron H. verfasserin aut Enthalten in Catalysis letters Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988 145(2014), 2 vom: 22. Nov., Seite 533-540 (DE-627)306717638 (DE-600)1501518-X 1572-879X nnns volume:145 year:2014 number:2 day:22 month:11 pages:533-540 https://dx.doi.org/10.1007/s10562-014-1440-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 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_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 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_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 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_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 ASE AR 145 2014 2 22 11 533-540
allfieldsSound	10.1007/s10562-014-1440-0 doi (DE-627)SPR011342803 (SPR)s10562-014-1440-0-e DE-627 ger DE-627 rakwb eng 540 660 ASE 35.17 bkl Jacobs, Gary verfasserin aut Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213 Ricote, Sandrine verfasserin aut Graham, Uschi M. verfasserin aut Davis, Burtron H. verfasserin aut Enthalten in Catalysis letters Dordrecht [u.a.] : Springer Science + Business Media B.V, 1988 145(2014), 2 vom: 22. Nov., Seite 533-540 (DE-627)306717638 (DE-600)1501518-X 1572-879X nnns volume:145 year:2014 number:2 day:22 month:11 pages:533-540 https://dx.doi.org/10.1007/s10562-014-1440-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 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_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 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_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 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_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.17 ASE AR 145 2014 2 22 11 533-540
language	English
source	Enthalten in Catalysis letters 145(2014), 2 vom: 22. Nov., Seite 533-540 volume:145 year:2014 number:2 day:22 month:11 pages:533-540
sourceStr	Enthalten in Catalysis letters 145(2014), 2 vom: 22. Nov., Seite 533-540 volume:145 year:2014 number:2 day:22 month:11 pages:533-540
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Ceria Pt Pt/ceria Type II bridging OH groups Formate Water–gas shift
dewey-raw	540
isfreeaccess_bool	false
container_title	Catalysis letters
authorswithroles_txt_mv	Jacobs, Gary @@aut@@ Ricote, Sandrine @@aut@@ Graham, Uschi M. @@aut@@ Davis, Burtron H. @@aut@@
publishDateDaySort_date	2014-11-22T00:00:00Z
hierarchy_top_id	306717638
dewey-sort	3540
id	SPR011342803
language_de	englisch
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author	Jacobs, Gary
spellingShingle	Jacobs, Gary ddc 540 bkl 35.17 misc Ceria misc Pt misc Pt/ceria misc Type II bridging OH groups misc Formate misc Water–gas shift Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments
authorStr	Jacobs, Gary
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topic_title	540 660 ASE 35.17 bkl Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments Ceria (dpeaa)DE-He213 Pt (dpeaa)DE-He213 Pt/ceria (dpeaa)DE-He213 Type II bridging OH groups (dpeaa)DE-He213 Formate (dpeaa)DE-He213 Water–gas shift (dpeaa)DE-He213
topic	ddc 540 bkl 35.17 misc Ceria misc Pt misc Pt/ceria misc Type II bridging OH groups misc Formate misc Water–gas shift
topic_unstemmed	ddc 540 bkl 35.17 misc Ceria misc Pt misc Pt/ceria misc Type II bridging OH groups misc Formate misc Water–gas shift
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title	Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments
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title_full	Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments
author_sort	Jacobs, Gary
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author_browse	Jacobs, Gary Ricote, Sandrine Graham, Uschi M. Davis, Burtron H.
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author-letter	Jacobs, Gary
doi_str_mv	10.1007/s10562-014-1440-0
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title_sort	low temperature water–gas shift reaction: interactions of steam and co with ceria treated with different oxidizing and reducing environments
title_auth	Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments
abstract	Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract
abstractGer	Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract
abstract_unstemmed	Abstract In a recent review article, it was suggested that a redox mechanism best describes observations regarding the WGS reaction for metal promoted ceria systems, as well as how molecules such as CO, $ CO_{2} $, $ H_{2} $O, and $ H_{2} $ interact with the ceria surface. In this contribution, the pretreated surface of Pt/ceria was subjected to steaming or $ H_{2} $ treatment at 250 °C followed by CO adsorption after six different pre-treatment sequences were performed. Subjecting a $ H_{2} $-treated surface directly to CO, or followed by steaming, led to the highest concentration of surface formates by reaction of CO with $ Ce^{3+} $ defect-associated Type II bridging OH groups. The Type II OH groups were also generated by CO treatment followed by steaming. Using CO as a probe led to a significant coverage of formate species, though less than the previous cases (CO added to a $ H_{2} $ treated surface or a surface treated with $ H_{2} $, then $ H_{2} $O). Surprisingly, even subjecting an oxidized surface (pre-reduced and subjected to $ O_{2} $ at 400 °C) to steam still produced a significant density of Type II OH groups, as evidenced by the formates produced upon exposure to CO. The formates were easily decomposed in steam at 130 °C and converted to carbonate species. Thus, focusing on the turnover of formate via C–H bond breaking offers important possibilities for future catalyst development. Graphical Abstract
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title_short	Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments
url	https://dx.doi.org/10.1007/s10562-014-1440-0
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author2	Ricote, Sandrine Graham, Uschi M. Davis, Burtron H.
author2Str	Ricote, Sandrine Graham, Uschi M. Davis, Burtron H.
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doi_str	10.1007/s10562-014-1440-0
up_date	2024-07-03T22:03:23.760Z
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Low Temperature Water–Gas Shift Reaction: Interactions of Steam and CO with Ceria Treated with Different Oxidizing and Reducing Environments

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