Hierarchical Bi/Bi2O3 heterostructures with robust oxygen vacancies for efficient electrochemical CO2 reduction to formate

Yi Wang; Zhaolong Wang; Siyu Yi; Qiankang Zhang; Mengxia Ji; Jinman Yang; Pengcheng Yan; Xingwang Zhu; Hui Xu; Xiaojie She

doi:10.1039/D5CC05453B

Hierarchical Bi/Bi₂O₃ heterostructures with robust oxygen vacancies for efficient electrochemical CO₂ reduction to formate

Yi Wang,^a Zhaolong Wang,*^b Siyu Yi,^a Qiankang Zhang,^a Mengxia Ji,^a Jinman Yang,

^a Pengcheng Yan,^a Xingwang Zhu,

*^c Hui Xu

*^ad and Xiaojie She*^abd

Author affiliations

* Corresponding authors

^a Institute for Energy Research, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, P. R. China
E-mail: xh@ujs.edu.cn, xiaojieshe@ujs.edu.cn

^b Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
E-mail: zhaolong.wang@polyu.edu.hk

^c Institute of Technology for Carbon Neutralization, College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China
E-mail: zxw@yzu.edu.cn

^d Suzhou Laboratory, Suzhou, Jiangsu, P. R. China

Abstract

An oxygen-vacancy-rich Bi/Bi₂O₃ catalyst with a hierarchical nanostructure was developed for efficient electrocatalytic CO₂-to-formate conversion, and the obtained Bi/Bi₂O₃ catalyst exhibits a faradaic efficiency exceeding 98% at −1.18 V vs. RHE with superior stability.

Chemical Communications

Hierarchical Bi/Bi₂O₃ heterostructures with robust oxygen vacancies for efficient electrochemical CO₂ reduction to formate

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Hierarchical Bi/Bi₂O₃ heterostructures with robust oxygen vacancies for efficient electrochemical CO₂ reduction to formate

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