Efficient Photothermal CO Hydrogenation into C2+ Hydrocarbons on in situ Generated Fe0 in Fe5C2 Active Sites via Cu-Promoted Hydrogen Dissociation and Spillover†
Renjie Zhou
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorHaoyang Jiang
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorYongcheng Xiao
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorYueren Liu
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorCorresponding Author
Miao Zhong
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
E-mail: [email protected]Search for more papers by this authorRenjie Zhou
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorHaoyang Jiang
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorYongcheng Xiao
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorYueren Liu
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
Search for more papers by this authorCorresponding Author
Miao Zhong
College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructure, National Laboratory of Solid State Microstructures, the Frontiers Science Center for Critical Earth Material Cyclings, Nanjing University, Nanjing, Jiangsu, 210023 China
E-mail: [email protected]Search for more papers by this authorDedicated to the Special Issue of Emerging Investigators in 2024.
Comprehensive Summary
Photothermal hydrogenation of carbon monoxide (CO) holds the potential to generate valuable C2+ chemicals using renewable solar energy. However, its activity and selectivity towards C2—C3 alkanes are limited compared to conventional thermal catalysis. In this study, we developed a robust catalyst consisting of Cu/Fe3O4 nanoparticles on Mo2CTx MXene, showing enhanced photothermal C2—C3 production. The Cu component plays a crucial role in H2 dissociation and subsequent H spillover, facilitating the in situ generation of Fe0 in Fe5C2 active sites and thus efficiently promoting photothermal CO hydrogenation. As a result, we achieved a 51.3% C2+ selectivity and 78.5% CO conversion at a high gas hourly space velocity (GHSV) of 12000 mL·gcat−1·h−1 and 2.5 MPa in a flow reactor at 320 °C. The overall C2—C3 yield reached 23.6% with Cu/Fe3O4/Mo2CTx catalysts, marking a 2.8-fold increase compared to the performance of the bare Fe3O4/Mo2CTx catalyst.
Supporting Information
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Appendix S1: Supporting Information |
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