Hou Xianghua, Ding Junyang, Liu Wenxian, Zhang Shusheng, Luo Jun, Liu Xijun
Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials & Low-Carbon Technologies, School of Materials, Tianjin University of Technology, Tianjin 300384, China.
MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resource, Environments and Materials, Nanning 530004, China.
Nanomaterials (Basel). 2023 Jan 11;13(2):309. doi: 10.3390/nano13020309.
Single-atom catalysts (SACs) have emerged as well-known catalysts in renewable energy storage and conversion systems. Several supports have been developed for stabilizing single-atom catalytic sites, e.g., organic-, metal-, and carbonaceous matrices. Noticeably, the metal species and their local atomic coordination environments have a strong influence on the electrocatalytic capabilities of metal atom active centers. In particular, asymmetric atom electrocatalysts exhibit unique properties and an unexpected carbon dioxide reduction reaction (CORR) performance different from those of traditional metal-N sites. This review summarizes the recent development of asymmetric atom sites for the CORR with emphasis on the coordination structure regulation strategies and their effects on CORR performance. Ultimately, several scientific possibilities are proffered with the aim of further expanding and deepening the advancement of asymmetric atom electrocatalysts for the CORR.
单原子催化剂（SACs）已成为可再生能源存储和转换系统中广为人知的催化剂。已经开发了几种用于稳定单原子催化位点的载体，例如有机、金属和碳质基质。值得注意的是，金属物种及其局部原子配位环境对金属原子活性中心的电催化能力有很大影响。特别是，不对称原子电催化剂表现出独特的性质和与传统金属-N位点不同的意外的二氧化碳还原反应（CORR）性能。本文综述了用于CORR的不对称原子位点的最新进展，重点介绍了配位结构调控策略及其对CORR性能的影响。最终，提出了几种科学可能性，旨在进一步扩展和深化用于CORR的不对称原子电催化剂的进展。
