期刊
CHEMSUSCHEM
卷 10, 期 23, 页码 4709-4714出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201701472
关键词
CO2 conversion; heterogeneous catalysis; hydrogenation; photocatalysis; water splitting
资金
- National Natural Science Foundation of China [21673189, 91545114, 21576227, 21373168]
- National Thousand Talents Program of P.R. China
- Fundamental Research Funds for the Central Universities [20720160032]
Photocatalytic CO2 reduction into renewable hydrocarbon solar fuels is considered as a promising strategy to simultaneously address global energy and environmental issues. This study focused on the direct coupling of photocatalytic water splitting and thermocatalytic hydrogenation of CO2 in the conversion of CO2-H2O into fuels. Specifically, it was found that direct coupling of thermo- and photocatalysis over Au-Ru/TiO2 leads to activity 15 times higher (T=358K; ca.99% CH4 selectivity) in the conversion of CO2-H2O into fuels than that of photocatalytic water splitting. This is ascribed to the promoting effect of thermocatalytic hydrogenation of CO2 by hydrogen atoms generated in situ by photocatalytic water splitting.
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