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dual metal atom catalysts:Advantages in electrocatalytic reactions

Journal of Energy Chemistry 2023年第4期79卷 515-534页

作者： Kaihua Liu Jing Li Yuanyuan Liu Meiri Wang Hongtao Cui College of Chemistry&Chemical Engineering Yantai UniversityYantai 264005ShandongChina

The dual-metal-atom catalysts(DACs)have aroused much attention as they possess the advantages of single-atom and metal alloy catalysts.And the DACs have exhibited enhanced performance in various electrocatalytic reactions,such as hydrogen/oxygen evolution and oxygen/carbon dioxide/nitrogen reduction.In this review,we mainly overview the latest understanding of the advantages of DACs for these reactions.This review will start with the familiar characterization methods for DACs,then the primary synthesis strategies for DACs will be discussed.Emphasis is given to the advantages of DACs in catalytic reactions,including the adsorption and activation,electronic structure regulation,breaking scaling relations,reducing energy barriers,cascading and coupling,synergy effect,and providing mechanism research platforms.Finally,personal perspectives and challenges for the further development of DACs are briefly discussed.

关键词： dual atom catalysts Synergy effect Scaling relation Mechanism study platform

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Recent progress of electrochemical reduction of CO_(2)by single atom catalysts

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Materials Reports(Energy) 2022年第3期2卷 3-21页

作者： Tian Wang Jincheng Zhang Fuhua Li Bin Liu Sibudjing Kawi Department of Chemical&Biomolecular Engineering National University of Singapore117585Singapore School of Chemical and Biomedical Engineering Nanyang Technological University637459Singapore

Powered by electricity from renewable energies,electrochemical reduction of CO_(2)could not only efficiently alleviate the excess emission of CO_(2),but also produce many kinds of valuable chemical feedstocks.Among various catalysts,single atom catalysts(SACs)have attracted much attention due to their high atom utilization efficiency and expressive catalytic performances.Additionally,SACs serve as an ideal platform for the investigation of complex reaction pathways and mechanisms thanks to their explicit active sites.In this review,the possible re-action pathways for the generation of various products(mainly C1 products for SACs)were firstly summarized.Then,recent progress of SACs for electrochemical reduction of CO_(2)was discussed in aspect of different central metal sites.As the most popular and efficient coordination modulation strategy,introducing heteroatom was then reviewed.Moreover,as an extension of SACs,the development of dual atom catalysts was also briefly discussed.At last,some issues and challenges regarding the SACs for CO_(2)reduction reaction(CO_(2)RR)were listed,followed by corresponding suggestions.

关键词： Single atom catalysts CO_(2)reduction reaction Reaction pathways Coordination modulation dual atom catalysts

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