合理设计
催化作用
碳纤维
协调数
配位复合体
电催化剂
氧还原反应
纳米技术
Atom(片上系统)
电子结构
材料科学
化学
金属
计算机科学
电极
电化学
计算化学
物理化学
离子
有机化学
复合材料
嵌入式系统
冶金
复合数
作者
Xun Cui,Likun Gao,Cheng‐Hsin Lu,Rui Ma,Yingkui Yang,Zhiqun Lin
标识
DOI:10.1186/s40580-022-00324-8
摘要
Single-metal-atom catalysts (SMACs) have garnered extensive attention for various electrocatalytic applications, owing to their maximum atom-utilization efficiency, tunable electronic structure, and remarkable catalytic performance. In particular, carbon-based SMACs exhibit optimal electrocatalytic activity for the oxygen reduction reaction (ORR) which is of paramount importance for several sustainable energy conversion and generation technologies, such as fuel cells and metal-air batteries. Despite continuous endeavors in developing various advanced carbon-based SMACs for electrocatalytic ORR, the rational regulation of coordination structure and thus the electronic structure of carbon-based SMACs remains challenging. In this review, we critically examine the role of coordination structure, including local coordination structure (i.e., metal atomic centers and the first coordination shell) and extended local coordination structure (i.e., the second and higher coordination shells), on the rational design of carbon-based SMACs for high-efficiency electrocatalytic ORR. Insights into the relevance between coordination structures and their intrinsic ORR activities are emphatically exemplified and discussed. Finally, we also propose the major challenges and future perspectives in the rational design of advanced carbon-based SMACs for electrocatalytic ORR. This review aims to emphasize the significance of coordination structure and deepen the insightful understanding of structure-performance relationships.
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