Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas
Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is cruc...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zhou, Ying [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION - Garg, A. ELSEVIER, 2014, diffusion and reactions, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:350 ; year:2020 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.ssi.2020.115278 |
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| Katalog-ID: |
ELV050234471 |
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| 245 | 1 | 0 | |a Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. | ||
| 520 | |a Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. | ||
| 700 | 1 | |a Zhou, Tingting |4 oth | |
| 700 | 1 | |a Zhang, Yipeng |4 oth | |
| 700 | 1 | |a Tang, Li |4 oth | |
| 700 | 1 | |a Guo, Qing |4 oth | |
| 700 | 1 | |a Wang, Mingfeng |4 oth | |
| 700 | 1 | |a Xie, Changsheng |4 oth | |
| 700 | 1 | |a Zeng, Dawen |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Garg, A. ELSEVIER |t P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION |d 2014 |d diffusion and reactions |g Amsterdam [u.a.] |w (DE-627)ELV012106844 |
| 773 | 1 | 8 | |g volume:350 |g year:2020 |g pages:0 |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.ssi.2020.115278 |3 Volltext |
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| 936 | b | k | |a 44.44 |j Parasitologie |x Medizin |q VZ |
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2020transfer abstract |
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44.44 |
| publishDate |
2020 |
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10.1016/j.ssi.2020.115278 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001004.pica (DE-627)ELV050234471 (ELSEVIER)S0167-2738(19)31191-9 DE-627 ger DE-627 rakwb eng 610 VZ 610 VZ 44.44 bkl Zhou, Ying verfasserin aut Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Zhou, Tingting oth Zhang, Yipeng oth Tang, Li oth Guo, Qing oth Wang, Mingfeng oth Xie, Changsheng oth Zeng, Dawen oth Enthalten in Elsevier Science Garg, A. ELSEVIER P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION 2014 diffusion and reactions Amsterdam [u.a.] (DE-627)ELV012106844 volume:350 year:2020 pages:0 https://doi.org/10.1016/j.ssi.2020.115278 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_21 GBV_ILN_78 44.44 Parasitologie Medizin VZ AR 350 2020 0 |
| spelling |
10.1016/j.ssi.2020.115278 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001004.pica (DE-627)ELV050234471 (ELSEVIER)S0167-2738(19)31191-9 DE-627 ger DE-627 rakwb eng 610 VZ 610 VZ 44.44 bkl Zhou, Ying verfasserin aut Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Zhou, Tingting oth Zhang, Yipeng oth Tang, Li oth Guo, Qing oth Wang, Mingfeng oth Xie, Changsheng oth Zeng, Dawen oth Enthalten in Elsevier Science Garg, A. ELSEVIER P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION 2014 diffusion and reactions Amsterdam [u.a.] (DE-627)ELV012106844 volume:350 year:2020 pages:0 https://doi.org/10.1016/j.ssi.2020.115278 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_21 GBV_ILN_78 44.44 Parasitologie Medizin VZ AR 350 2020 0 |
| allfields_unstemmed |
10.1016/j.ssi.2020.115278 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001004.pica (DE-627)ELV050234471 (ELSEVIER)S0167-2738(19)31191-9 DE-627 ger DE-627 rakwb eng 610 VZ 610 VZ 44.44 bkl Zhou, Ying verfasserin aut Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Zhou, Tingting oth Zhang, Yipeng oth Tang, Li oth Guo, Qing oth Wang, Mingfeng oth Xie, Changsheng oth Zeng, Dawen oth Enthalten in Elsevier Science Garg, A. ELSEVIER P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION 2014 diffusion and reactions Amsterdam [u.a.] (DE-627)ELV012106844 volume:350 year:2020 pages:0 https://doi.org/10.1016/j.ssi.2020.115278 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_21 GBV_ILN_78 44.44 Parasitologie Medizin VZ AR 350 2020 0 |
| allfieldsGer |
10.1016/j.ssi.2020.115278 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001004.pica (DE-627)ELV050234471 (ELSEVIER)S0167-2738(19)31191-9 DE-627 ger DE-627 rakwb eng 610 VZ 610 VZ 44.44 bkl Zhou, Ying verfasserin aut Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Zhou, Tingting oth Zhang, Yipeng oth Tang, Li oth Guo, Qing oth Wang, Mingfeng oth Xie, Changsheng oth Zeng, Dawen oth Enthalten in Elsevier Science Garg, A. ELSEVIER P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION 2014 diffusion and reactions Amsterdam [u.a.] (DE-627)ELV012106844 volume:350 year:2020 pages:0 https://doi.org/10.1016/j.ssi.2020.115278 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_21 GBV_ILN_78 44.44 Parasitologie Medizin VZ AR 350 2020 0 |
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10.1016/j.ssi.2020.115278 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001004.pica (DE-627)ELV050234471 (ELSEVIER)S0167-2738(19)31191-9 DE-627 ger DE-627 rakwb eng 610 VZ 610 VZ 44.44 bkl Zhou, Ying verfasserin aut Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. Zhou, Tingting oth Zhang, Yipeng oth Tang, Li oth Guo, Qing oth Wang, Mingfeng oth Xie, Changsheng oth Zeng, Dawen oth Enthalten in Elsevier Science Garg, A. ELSEVIER P616 TGFβ1 STIMULATION OF HUMAN BONE MARROW MESENCHYMAL STEM CELLS (MSC) ENHANCES THEIR HEPATIC ENGRAFTMENT AND THERAPEUTIC EFFECT IN INJURED LIVER VIA UPREGULATION OF CXCR3 FUNCTION 2014 diffusion and reactions Amsterdam [u.a.] (DE-627)ELV012106844 volume:350 year:2020 pages:0 https://doi.org/10.1016/j.ssi.2020.115278 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_21 GBV_ILN_78 44.44 Parasitologie Medizin VZ AR 350 2020 0 |
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Synthesis of core-shell flower-like WO3ZIF-71 with enhanced response and selectivity to H2S gas |
| abstract |
Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. |
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Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. |
| abstract_unstemmed |
Core-shell heterostructures of metal oxide semiconductor (MOS) and metal organic framework (MOF) improve gas-sensing properties due to the MOF's molecular sieving effects. However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. These results indicate that the MOS@MOF core-shell structure can be synthesized by the SBS method without the restriction of the same metal elements in MOS and MOF, which is also an effective approach to regulate the selectivity and sensitivity of the MOS@MOF gas sensor. |
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Zhou, Tingting Zhang, Yipeng Tang, Li Guo, Qing Wang, Mingfeng Xie, Changsheng Zeng, Dawen |
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Zhou, Tingting Zhang, Yipeng Tang, Li Guo, Qing Wang, Mingfeng Xie, Changsheng Zeng, Dawen |
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| doi_str |
10.1016/j.ssi.2020.115278 |
| up_date |
2024-07-06T16:58:56.253Z |
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However, the selection of MOF is limited by the requirement of identical metal element in MOF to that in MOS, which is crucial for valid interface adhesion. In this paper, WO3ZIF-71 (zeolitic imidazolate framework) structure with different metal elemental components (W and Zn) was fabricated by a step-by-step (SBS) approach. As a result, ZIF-71 was uniformly coated on the surface of WO3. In order to explore the influence of ZIF-71 (pore size: 4.8 Å), the gas sensitivity of WO3 and WO3@ZIF-71 were tested. Different kinetic diameters gases: H2S (3.62 Å), CH3COCH3 (4.6 Å), CH3CH2OH (4.53 Å), NO2 (5.8 Å) were selected as testing gas. Gases with small molecules (H2S, CH3COCH3 and CH3CH2OH) can pass through the membrane of ZIF-71 and contact with WO3, while larger ones (NO2) were blocked outside the membrane. Excitingly, the response of WO3@ZIF-71 toward H2S gas was significantly improved, which soars from 2.24 of 20 ppm for pure WO3 to 19.12 for H2S at 250 °C, increased about 9 times. 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