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Controlled Modification of Axial Coordination for Transition-Metal Single-Atom Electrocatalyst
Authors:Dr. Xiangjian Liu  Dr. Yarong Liu  Prof. Wenxiu Yang  Prof. Xiao Feng  Prof. Bo Wang
Affiliation:Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081 P. R. China
Abstract:Single-atom catalysts (SACs) have emerged as a new frontier in areas such as electrocatalysis, photocatalysis, and enzymatic catalysis. Aided by recent advances in the synthetic methodologies of nanomaterials, atomic characterization technologies, and theoretical calculation modeling, various SACs have been prepared for a variety of catalytic reactions. To meet the requirements of SACs with distinctive performance and appreciable selectivity, much research has been carried out to adjust the coordination configuration and electronic properties of SACs. This concept summarizes the latest advances in the experimental and computational efforts aimed at tuning the axial coordination of SACs. Series of atoms, functional groups or even macrocycles are oriented into the atomic metal center, and how this affects the electrocatalytic performance is also reviewed. Finally, this concept presents perspectives for the further precise design, preparation and in-situ detection of axially coordinated SACs.
Keywords:axial coordination modification  electrocatalysts  electronic structures  single-atom catalysts  transition metals
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