Li Hongliang, Wang Menglin, Luo Laihao, Zeng Jie
Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences National Synchrotron Radiation Laboratory Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. China.
Adv Sci (Weinh). 2018 Nov 27;6(3):1801471. doi: 10.1002/advs.201801471. eCollection 2019 Feb 6.
Single-atom catalysts provide an ideal platform to bridge the gap between homogenous and heterogeneous catalysts. Here, the recent progress in this field is reported from the perspectives of static regulation and dynamic evolution. The syntheses and characterizations of single-atom catalysts are briefly discussed as a prerequisite for catalytic investigation. From the perspective of static regulation, the metal-support interaction is illustrated in how the supports alter the electronic properties of single atoms and how the single atoms activate the inert atoms in supports. The synergy between single atoms is highlighted. Besides these static views, the surface reconstruction, such as displacement and aggregation of single atoms in catalytic conditions, is summarized. Finally, the current technical challenges and mechanistic debates in single-atom heterogeneous catalysts are discussed.
单原子催化剂为弥合均相催化剂和多相催化剂之间的差距提供了一个理想平台。在此，从静态调控和动态演化的角度报道了该领域的最新进展。作为催化研究的前提，简要讨论了单原子催化剂的合成与表征。从静态调控的角度，阐述了金属-载体相互作用，包括载体如何改变单原子的电子性质以及单原子如何活化载体中的惰性原子。强调了单原子之间的协同作用。除了这些静态观点，还总结了表面重构，如催化条件下单原子的位移和聚集。最后，讨论了单原子多相催化剂目前面临的技术挑战和机理争议。
