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Wu Y, Chen Q, Zhu J, Zheng K, Wu M, Fan M, Yan W, Hu J, Zhu J, Pan Y, Jiao X, Sun Y, Xie Y. Selective CO 2 -to-C 2 H 4 Photoconversion Enabled by Oxygen-Mediated Triatomic Sites in Partially Oxidized Bimetallic Sulfide. Angew Chem Int Ed Engl 2023; 62:e202301075. [PMID: 36792533 DOI: 10.1002/anie.202301075] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/12/2023] [Accepted: 02/15/2023] [Indexed: 02/17/2023]
Abstract
Selective CO2 photoreduction into C2 fuels under mild conditions suffers from low product yield and poor selectivity owing to the kinetic challenge of C-C coupling. Here, triatomic sites are introduced into bimetallic sulfide to promote C-C coupling for selectively forming C2 products. As an example, FeCoS2 atomic layers with different oxidation degrees are first synthesized, demonstrated by X-ray photoelectron spectroscopy and X-ray absorption near edge spectroscopy spectra. Both experiment and theoretical calculation verify more charges aggregate around the introduced oxygen atom, which enables the original Co-Fe dual sites to turn into Co-O-Fe triatomic sites, thus promoting C-C coupling of double *COOH intermediates. Accordingly, the mildly oxidized FeCoS2 atomic layers exhibit C2 H4 formation rate of 20.1 μmol g-1 h-1 , with the product selectivity and electron selectivity of 82.9 % and 96.7 %, outperforming most previously reported photocatalysts under similar conditions.
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Affiliation(s)
- Yang Wu
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Qingxia Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 214122, Wuxi, China
| | - Juncheng Zhu
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Kai Zheng
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Mingyu Wu
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Minghui Fan
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Wensheng Yan
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Jun Hu
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Junfa Zhu
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Yang Pan
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Xingchen Jiao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 214122, Wuxi, China
| | - Yongfu Sun
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
| | - Yi Xie
- Hefei National Research Center for Physical Sciences at Microscale, National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026, Hefei, China
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Li SF, Chen Y, Wang YS, Mo HL, Zang SQ. Integration of enzyme immobilization and biomimetic catalysis in hierarchically porous metal-organic frameworks for multi-enzymatic cascade reactions. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1254-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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