摘要
Single-atom catalysts(SACs)have become an emerging frontier trend in the field of heterogeneous catalysis due to their high activity,selectivity and stability.SACs could greatly increase the availabilities of the active metal atoms in many catalytic reactions by reducing the size to single atom scale.Graphene-supported metal SACs have also drawn considerable attention due to the unique lattice structure and physicochemical properties of graphene,resulting in superior activity and selectivity for several chemical reactions.In this paper,we review recent progress in the fabrications,advanced characterization tools and advantages of graphene-supported metal SACs,focusing on their applications in catalytic reactions such as CO oxidation,the oxidation of benzene to phenol,hydrogen evolution reaction,methanol oxidation reaction,oxygen reduction reaction,hydrogenation and photoelectrocatalysis.We also propose the development of SACs towards industrialization in the future.
单原子催化剂具有较高的活性、选择性和稳定性,已成为多相催化领域的一个新兴前沿趋势.通过将催化反应中活性金属原子的尺寸减小到单原子尺度,单原子催化剂可以大幅提高活性金属原子在众多催化反应中的有效性.石墨烯基金属单原子催化剂也因其独特的晶格结构和物理化学性质而备受关注,使其在一些化学反应中表现出了优异的活性和选择性.本文综述了近年来石墨烯基金属单原子催化剂的制备方法、先进表征手段及优点,重点介绍了其在一氧化碳氧化、苯氧化制苯酚、析氢反应、甲醇氧化反应、氧还原反应、加氢及光电催化等方面的应用.最后,我们对石墨烯基金属单原子催化剂未来的产业化发展提出了建议.
作者
Shuai Ren
Qi Yu
Xiaohu Yu
Ping Rong
Liyun Jiang
Jianchao Jiang
任帅;于琦;于小虎;容萍;姜立运;蒋剑超(School of Materials Science and Engineering,Institute of Graphene at Shaanxi Key Laboratory of Catalysis,Shaanxi University of Technology,Hanzhong 723001,China;School of Chemistry and Environmental Science,Shaanxi Key Laboratory of Catalysis,Shaanxi University of Technology,Hanzhong 723001,China;School of Physics and Telecommunication Engineering,Shaanxi University of Technology,Hanzhong 723001,China)
基金
This work was financially supported by the National Natural Science Foundation of China(51502166 and 51881220658)
the Scientific Research Program Funded by Shaanxi Provincial Department(17JK0130).
