A restructuring-resistant BiCuOS superlattice stabilizing Bi–O coordination for highly selective CO2 electroreduction to formate

Ganwen Chen; Jie Chen; Yukun Xiao; Meng Wang; Yishui Ding; Chenrui Ji; Lei Fan; Bailin Tian; Changjin Guo; Hexing Li; Yuecheng Xiong; Zhangliu Tian; Wei Chen

doi:10.1039/D6CC01492E

A restructuring-resistant BiCuOS superlattice stabilizing Bi–O coordination for highly selective CO₂ electroreduction to formate

Ganwen Chen,

†^ab Jie Chen,†^cd Yukun Xiao,^b Meng Wang,^b Yishui Ding,^b Chenrui Ji,^b Lei Fan,^b Bailin Tian,^b Changjin Guo,

^b Hexing Li,

^e Yuecheng Xiong,*^b Zhangliu Tian*^bf and Wei Chen

*^bc

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* Corresponding authors

^a Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, PR China

^b Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
E-mail: xiongyc@nus.edu.sg, tianzhangliu@mail.sic.ac.cn, phycw@nus.edu.sg

^c Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore

^d State Key Laboratory of Metal Organic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China

^e The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Frontiers Science Center of Biomimetic Catalysis, Shanghai Normal University, Shanghai 200234, China

^f CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, PR China

Abstract

Bismuth-based catalysts for eCO₂R often undergo restructuring, obscuring intrinsic activity. Here we report a restructuring-resistant BiCuOS catalyst with a stable and active Bi–O framework, delivering 96.6% FE_formate at −0.7 V_RHE and enabling identification of *OCHO as the key intermediate and *HCOOH formation as the rate-determining step.

This article is part of the themed collection: ChemComm Electrocatalysis

Chemical Communications

A restructuring-resistant BiCuOS superlattice stabilizing Bi–O coordination for highly selective CO₂ electroreduction to formate

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A restructuring-resistant BiCuOS superlattice stabilizing Bi–O coordination for highly selective CO₂ electroreduction to formate

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