Photo-thermal coupling to enhance CO2 hydrogenation toward CH4 over Ru/MnO/Mn3O4
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Published:2024-02-06
Issue:1
Volume:15
Page:
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ISSN:2041-1723
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Container-title:Nature Communications
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language:en
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Short-container-title:Nat Commun
Author:
Zhai Jianxin, Xia Zhanghui, Zhou BaowenORCID, Wu HaihongORCID, Xue Teng, Chen Xiao, Jiao Jiapeng, Jia Shuaiqiang, He MingyuanORCID, Han BuxingORCID
Abstract
AbstractUpcycling of CO2 into fuels by virtually unlimited solar energy provides an ultimate solution for addressing the substantial challenges of energy crisis and climate change. In this work, we report an efficient nanostructured Ru/MnOx catalyst composed of well-defined Ru/MnO/Mn3O4 for photo-thermal catalytic CO2 hydrogenation to CH4, which is the result of a combination of external heating and irradiation. Remarkably, under relatively mild conditions of 200 °C, a considerable CH4 production rate of 166.7 mmol g−1 h−1 was achieved with a superior selectivity of 99.5% at CO2 conversion of 66.8%. The correlative spectroscopic and theoretical investigations suggest that the yield of CH4 is enhanced by coordinating photon energy with thermal energy to reduce the activation energy of reaction and promote formation of key intermediate COOH* species over the catalyst. This work opens up a new strategy for CO2 hydrogenation toward CH4.
Funder
National Natural Science Foundation of China the Research Funds of Happiness Flower ECNU Shanghai Pilot Program for Basic Research-Shanghai Jiao Tong University National Key Research and Development Program of China
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
Reference50 articles.
1. He, M., Sun, Y. & Han, B. Green carbon science: scientific basis for integrating carbon resource processing, utilization, and recycling. Angew. Chem. Int. Ed. 52, 9620–9633 (2013). 2. Gao, P., Zhong, L., Han, B., He, M. & Sun, Y. Green carbon science: keeping the pace in practice. Angew. Chem. Int. Ed. 61, e202210095 (2022). 3. He, M., Sun, Y. & Han, B. Green carbon science: efficient carbon resource processing, utilization, and recycling towards carbon neutrality. Angew. Chem. Int. Ed. 61, e202112835 (2022). 4. Zhao, T., Yang, Z., Tang, Y., Liu, J. & Wang, F. Advances and perspectives of photopromoted CO2 hydrogenation for methane production: catalyst development and mechanism investigations. Energy Fuels 36, 6711–6735 (2022). 5. Zhou, B., Li, J., Dong, X. & Yao, L. GaN nanowires/Si photocathodes for CO2 reduction towards solar fuels and chemicals: advances, challenges, and prospects. Science China. Chemistry 66, 739–754 (2023).
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