Zhuo Hong-Ying, Zhang Xin, Liang Jin-Xia, Yu Qi, Xiao Hai, Li Jun
Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China.
State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China.
Chem Rev. 2020 Nov 11;120(21):12315-12341. doi: 10.1021/acs.chemrev.0c00818. Epub 2020 Oct 28.
Research on heterogeneous single-atom catalysts (SACs) has become an emerging frontier in catalysis science because of their advantages in high utilization of noble metals, precisely identified active sites, high selectivity, and tunable activity. Graphene, as a one-atom-thick two-dimensional carbon material with unique structural and electronic properties, has been reported to be a superb support for SACs. Herein, we provide an overview of recent progress in investigations of graphene-based SACs. Among the large number of publications, we will selectively focus on the stability of metal single-atoms (SAs) anchored on different sites of graphene support and the catalytic performances of graphene-based SACs for different chemical reactions, including thermocatalysis and electrocatalysis. We will summarize the fundamental understandings on the electronic structures and their intrinsic connection with catalytic properties of graphene-based SACs, and also provide a brief perspective on the future design of efficient SACs with graphene and graphene-like materials.
由于异质单原子催化剂（SACs）在贵金属高利用率、活性位点精确识别、高选择性和可调活性方面具有优势，其研究已成为催化科学领域一个新兴的前沿课题。石墨烯作为一种具有独特结构和电子性质的单原子厚二维碳材料，已被报道是SACs的优良载体。在此，我们概述了基于石墨烯的SACs研究的最新进展。在大量的出版物中，我们将有选择地关注锚定在石墨烯载体不同位点上的金属单原子（SAs）的稳定性，以及基于石墨烯的SACs对不同化学反应（包括热催化和电催化）的催化性能。我们将总结对基于石墨烯的SACs电子结构及其与催化性能内在联系的基本认识，并简要展望未来利用石墨烯及类石墨烯材料设计高效SACs的前景。
