Ren Shan, Cao Xi, Jiang Zinan, Yu Zijuan, Zhang Tingting, Wei Shaohui, Fan Qikui, Yang Jian, Mao Junjie, Wang Dingsheng
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
School of Physics, Xi'an Jiaotong University, Xi'an 710049, China.
Chem Commun (Camb). 2023 Feb 28;59(18):2560-2570. doi: 10.1039/d3cc00005b.
The field of small molecule electro-activated conversion is becoming a new star in modern catalytic research toward the carbon-neutral future. The advent of single-atom catalysts (SACs) is expected to greatly accelerate the kinetics of electrocatalytic reactions such as the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), oxygen reduction reaction (ORR), hydrogen oxidation reaction (HOR), , owing to their maximum atomic efficiency, unique quantized energy level structure and strong interaction between well-defined active sites and supports. In this feature article, our group's proposed synthesis methodology applied in electrocatalysis is mainly summarized. Furthermore, we elaborate on how to achieve the stabilization of single metal atoms against migration and agglomeration during the preparation of SACs. Moreover, the electrochemical applications of SACs with a focus on the above heterogeneous reactions are presented. Finally, the prospects for the development and deficiencies of these SACs for electrocatalytic reactions are discussed.
在迈向碳中性未来的现代催化研究中，小分子电激活转化领域正成为一颗新星。单原子催化剂（SACs）的出现有望极大地加速诸如析氢反应（HER）、析氧反应（OER）、氧还原反应（ORR）、氢氧化反应（HOR）等电催化反应的动力学，这归因于其最大的原子效率、独特的量子化能级结构以及明确的活性位点与载体之间的强相互作用。在这篇专题文章中，主要总结了本课题组提出的应用于电催化的合成方法。此外，我们阐述了在制备单原子催化剂过程中如何实现单金属原子的稳定，防止其迁移和团聚。而且，还介绍了以上述多相反应为重点的单原子催化剂的电化学应用。最后，讨论了这些单原子催化剂用于电催化反应的发展前景和不足之处。
