Progress in electrocatalysis by single-atom site catalysts

被引：0
|
作者：
Zhu T. [1 ]
Han Y. [1 ]
Liu S. [1 ]
Xie W. [1 ]
Yuan B. [1 ]
Song H. [2 ]
Chegn F. [2 ]
机构：
[1] Institute of Atmospheric Environmental Management and Pollution Control, China University of Mining and Technology-Beijing, Beijing
[2] Institute of Resources and Environment Engineering of Shanxi University, Taiyuan
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 02期
关键词：
Application; Characterization technique; Computer simulation; Electrochemistry; Preparation; Single-atom site catalyst;
D O I：
10.16085/j.issn.1000-6613.2021-0658
中图分类号：
学科分类号：
摘要：
Single-atom site catalysts have received extensive attention due to their close to 100% atom utilization efficiency, and excellent activity, selectivity and stability. This review describes the latest research results of single-atom site catalysts and their applications in electrocatalysis. The preparation methods of single-atom site catalysts are introduced in detail, including the co-precipitation, electrochemical precipitation, atomic layer deposition, photochemical and atomic confinement using the "bottom-up" synthesis strategy, as well as the high-temperature atom migration trapping, high-temperature pyrolysis and hanging key trapping using the "top-down" synthesis strategy. Characterization techniques of high-angle annular dark field transmission scanning microscope and X-ray absorption spectroscopy are analyzed. Theoretical calculations by density functional theory and first principle are also analyzed. Applications in electrocatalysis, mainly including oxygen reduction reaction (ORR), nitrogen reduction reaction (NRR), CO2 reduction reaction (CO2RR), hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are introduced. Finally, the current problems of single-atom catalysts such as the inability to large scale production and the unclear catalytic mechanism are pointed out and relevant suggestions are given. The prospect of single-atom site catalysts is proposed. Innovative preparation of stable single-atom site catalysts to achieve their large-scale preparation and industrial application, and the use of advanced characterization techniques to further clarify the catalytic mechanism should be the directions of future development. © 2022, Chemical Industry Press Co., Ltd. All right reserved.
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页码：666 / 681
页数：15
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