The electrochemical conversion of CO2 into value-added chemicals and fuels has attracted wide-spread concern since it realizes the recycling of greenhouse gases. Production of new materials lies at the very core of th...The electrochemical conversion of CO2 into value-added chemicals and fuels has attracted wide-spread concern since it realizes the recycling of greenhouse gases. Production of new materials lies at the very core of this technology as it enables the improvement of developmental efficiency and selectivity by chemical optimization of morphology and electronic structure. Transition metal-based catalysts are particularly appealing as their d bands have valence electrons which are close to the Fermi level and hence overcome the intrinsic activation barriers and reaction kinetics. The study of Mo, Fe, Co, and Ni-based materials in particular is a very recent research subject that offers various possibilities in electrochemical CO2 reduction applications. Herein, we summarize the recent re-search progress of Mo, Fe, Co, and Ni-based catalysts and their catalytic behavior in electrochemical CO〈sub〉2 reduction. We particularly focus on the relationship between structures and properties, with examples of the key features accounting for the high efficiency and selectivity of the CO2 reduction process. The most significant experimental and theoretical improvements are highlighted. Finally, we concisely discuss the scientific challenges and opportunities for transition metal-based catalysts.展开更多
基金supported by the National Natural Science Foundation of China (21477050, 21522603, 21706101)the Henry Fok Education Foundation (141068)+2 种基金Six Talents Peak Project in Jiangsu Province (XCL-025)the Chinese-German Cooperation Research Project (GZ1091)the China Postdoctoral Foundation (2017M611731)~~
文摘The electrochemical conversion of CO2 into value-added chemicals and fuels has attracted wide-spread concern since it realizes the recycling of greenhouse gases. Production of new materials lies at the very core of this technology as it enables the improvement of developmental efficiency and selectivity by chemical optimization of morphology and electronic structure. Transition metal-based catalysts are particularly appealing as their d bands have valence electrons which are close to the Fermi level and hence overcome the intrinsic activation barriers and reaction kinetics. The study of Mo, Fe, Co, and Ni-based materials in particular is a very recent research subject that offers various possibilities in electrochemical CO2 reduction applications. Herein, we summarize the recent re-search progress of Mo, Fe, Co, and Ni-based catalysts and their catalytic behavior in electrochemical CO〈sub〉2 reduction. We particularly focus on the relationship between structures and properties, with examples of the key features accounting for the high efficiency and selectivity of the CO2 reduction process. The most significant experimental and theoretical improvements are highlighted. Finally, we concisely discuss the scientific challenges and opportunities for transition metal-based catalysts.
