Design of a Single‐Atom Indiumδ+–N4Interface for Efficient Electroreduction of CO2to Formate

作者：Huishan Shang, Tao Wang, Jiajing Pei, Zhuoli Jiang, Danni Zhou, Yu Wang, Haijing Li, Juncai Dong, Zhongbin Zhuang, Wenxing Chen, Dingsheng S. Wang, Jiatao Zhang, Yadong Li · 发表于：Angewandte Chemie International Edition · 年份：2020 · DOI：10.1002/anie.202010903 · 被引用次数：387 · 研究领域：CO2 Reduction Techniques and Catalysts、Ammonia Synthesis and Nitrogen Reduction、Electrocatalysts for Energy Conversion

Abstract Main‐group element indium (In) is a promising electrocatalyst which triggers CO2reduction to formate, while the high overpotential and low Faradaic efficiency (FE) hinder its practical application. Herein, we rationally design a new In single‐atom catalyst containing exclusive isolated Inδ+–N4atomic interface sites for CO2electroreduction to formate with high efficiency. This catalyst exhibits an extremely large turnover frequency (TOF) up to 12500 h−1at −0.95 V versus the reversible hydrogen electrode (RHE), with a FE for formate of 96 % and current density of 8.87 mA cm−2at low potential of −0.65 V versus RHE. Our findings present a feasible strategy for the accurate regulation of main‐group indium catalysts for CO2reduction at atomic scale.