催化作用
纳米技术
吸附
氧还原反应
机制(生物学)
选择性催化还原
材料科学
设计要素和原则
选择性
化学
生化工程
组合化学
有机化学
工程类
系统工程
物理化学
物理
量子力学
电化学
电极
作者
Pengxiang Zhang,Yanyan Liu,Shilin Liu,Limin Zhou,Xianli Wu,Gaorong Han,Tao Liu,Kang Sun,Baojun Li,Jianchun Jiang
出处
期刊:Small
[Wiley]
日期:2023-09-17
标识
DOI:10.1002/smll.202305782
摘要
Abstract Due to their unique electronic and structural properties, single‐atom catalytic materials (SACMs) hold great promise for the oxygen reduction reaction (ORR). Coordinating environmental and engineering strategies is the key to improving the ORR performance of SACMs. This review summarizes the latest research progress and breakthroughs of SACMs in the field of ORR catalysis. First, the research progress on the catalytic mechanism of SACMs acting on ORR is reviewed, including the latest research results on the origin of SACMs activity and the analysis of pre‐adsorption mechanism. The study of the pre‐adsorption mechanism is an important breakthrough direction to explore the origin of the high activity of SACMs and the practical and theoretical understanding of the catalytic process. Precise coordination environment modification, including in‐plane, axial, and adjacent site modifications, can enhance the intrinsic catalytic activity of SACMs and promote the ORR process. Additionally, several engineering strategies are discussed, including multiple SACMs, high loading, and atomic site confinement. Multiple SACMs synergistically enhance catalytic activity and selectivity, while high loading can provide more active sites for catalytic reactions. Overall, this review provides important insights into the design of advanced catalysts for ORR.
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