Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification
Cu1In2Zr4-O-C catalysts with Cu2In alloy structure were prepared by using the sol–gel method. Cu1In2Zr4-O-PC and Cu1In2Zr4-O-CP catalysts were obtained from plasma-modified Cu1In2Zr4-O-C before and after calcination, respectively. Under the conditions of reaction temperature 270°C, reaction pressure...
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2023.1187762/full |
| _version_ | 1797822079358205952 |
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| author | Fujiao Song Jia Gao Bairen Yang Yan Cao Huanhuan Liu Qi Xu |
| author_facet | Fujiao Song Jia Gao Bairen Yang Yan Cao Huanhuan Liu Qi Xu |
| author_sort | Fujiao Song |
| collection | DOAJ |
| description | Cu1In2Zr4-O-C catalysts with Cu2In alloy structure were prepared by using the sol–gel method. Cu1In2Zr4-O-PC and Cu1In2Zr4-O-CP catalysts were obtained from plasma-modified Cu1In2Zr4-O-C before and after calcination, respectively. Under the conditions of reaction temperature 270°C, reaction pressure 2 MPa, CO2/H2 = 1/3, and GHSV = 12,000 mL/(g h), Cu1In2Zr4-O-PC catalyst has a high CO2 conversion of 13.3%, methanol selectivity of 74.3%, and CH3OH space-time yield of 3.26 mmol/gcat/h. The characterization results of X-ray diffraction (XRD), scanning electron microscopy (SEM), and temperature-programmed reduction chemisorption (H2-TPR) showed that the plasma-modified catalyst had a low crystallinity, small particle size, good dispersion, and excellent reduction performance, leading to a better activity and selectivity. Through plasma modification, the strong interaction between Cu and In in Cu1In2Zr4-O-CP catalyst, the shift of Cu 2p orbital binding energy to a lower position, and the decrease in reduction temperature all indicate that the reduction ability of Cu1In2Zr4-O-CP catalyst is enhanced, and the CO2 hydrogenation activity is improved. |
| first_indexed | 2024-03-13T10:02:34Z |
| format | Article |
| id | doaj.art-ca311e57fd2c4bb696208b5d8e87137f |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-03-13T10:02:34Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-ca311e57fd2c4bb696208b5d8e87137f2023-05-23T04:36:47ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462023-05-011110.3389/fchem.2023.11877621187762Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modificationFujiao Song0Jia Gao1Bairen Yang2Yan Cao3Huanhuan Liu4Qi Xu5Key Laboratory Under Construction for Volatile Organic Compounds Controlling of Jiangsu Province, School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, ChinaSchool of Chemistry and Chemical Engineering, Jiangsu University, Zhengjiang, ChinaKey Laboratory Under Construction for Volatile Organic Compounds Controlling of Jiangsu Province, School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, ChinaKey Laboratory Under Construction for Volatile Organic Compounds Controlling of Jiangsu Province, School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, ChinaKey Laboratory Under Construction for Volatile Organic Compounds Controlling of Jiangsu Province, School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, ChinaSchool of Chemistry and Chemical Engineering, Jiangsu University, Zhengjiang, ChinaCu1In2Zr4-O-C catalysts with Cu2In alloy structure were prepared by using the sol–gel method. Cu1In2Zr4-O-PC and Cu1In2Zr4-O-CP catalysts were obtained from plasma-modified Cu1In2Zr4-O-C before and after calcination, respectively. Under the conditions of reaction temperature 270°C, reaction pressure 2 MPa, CO2/H2 = 1/3, and GHSV = 12,000 mL/(g h), Cu1In2Zr4-O-PC catalyst has a high CO2 conversion of 13.3%, methanol selectivity of 74.3%, and CH3OH space-time yield of 3.26 mmol/gcat/h. The characterization results of X-ray diffraction (XRD), scanning electron microscopy (SEM), and temperature-programmed reduction chemisorption (H2-TPR) showed that the plasma-modified catalyst had a low crystallinity, small particle size, good dispersion, and excellent reduction performance, leading to a better activity and selectivity. Through plasma modification, the strong interaction between Cu and In in Cu1In2Zr4-O-CP catalyst, the shift of Cu 2p orbital binding energy to a lower position, and the decrease in reduction temperature all indicate that the reduction ability of Cu1In2Zr4-O-CP catalyst is enhanced, and the CO2 hydrogenation activity is improved.https://www.frontiersin.org/articles/10.3389/fchem.2023.1187762/fullplasma modificationZrO2Cu2In alloyCO2 hydrogenationmethanol |
| spellingShingle | Fujiao Song Jia Gao Bairen Yang Yan Cao Huanhuan Liu Qi Xu Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification Frontiers in Chemistry plasma modification ZrO2 Cu2In alloy CO2 hydrogenation methanol |
| title | Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification |
| title_full | Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification |
| title_fullStr | Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification |
| title_full_unstemmed | Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification |
| title_short | Cu2In alloy-embedded ZrO2 catalysts for efficient CO2 hydrogenation to methanol: promotion of plasma modification |
| title_sort | cu2in alloy embedded zro2 catalysts for efficient co2 hydrogenation to methanol promotion of plasma modification |
| topic | plasma modification ZrO2 Cu2In alloy CO2 hydrogenation methanol |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2023.1187762/full |
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