A Nanocomposite of Bismuth Clusters and Bi2 O2 CO3 Sheets for Highly Efficient Electrocatalytic Reduction of CO2 to Formate

Li Lin; Xiaoyang He; Xia-Guang Zhang; Wenchao Ma; Biao Zhang; Diye Wei; Shunji Xie; Qinghong Zhang; Xiaodong Yi; Ye Wang

doi:10.1002/anie.202214959

A Nanocomposite of Bismuth Clusters and Bi₂ O₂ CO₃ Sheets for Highly Efficient Electrocatalytic Reduction of CO₂ to Formate

Angew Chem Int Ed Engl. 2023 Jan 16;62(3):e202214959. doi: 10.1002/anie.202214959. Epub 2022 Dec 7.

Authors

Li Lin¹, Xiaoyang He¹, Xia-Guang Zhang², Wenchao Ma¹, Biao Zhang¹, Diye Wei¹, Shunji Xie^{1

3}, Qinghong Zhang¹, Xiaodong Yi¹, Ye Wang^{1

3}

Affiliations

¹ State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China.
² Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, P. R. China.
³ Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, Fujian, P. R. China.

PMID: 36307930
DOI: 10.1002/anie.202214959

Abstract

The renewable-electricity-driven CO₂ reduction to formic acid would contribute to establishing a carbon-neutral society. The current catalyst suffers from limited activity and stability under high selectivity and the ambiguous nature of active sites. Herein, we report a powerful Bi₂ S₃ -derived catalyst that demonstrates a current density of 2.0 A cm^-2 with a formate Faradaic efficiency of 93 % at -0.95 V versus the reversible hydrogen electrode. The energy conversion efficiency and single-pass yield of formate reach 80 % and 67 %, respectively, and the durability reaches 100 h at an industrial-relevant current density. Pure formic acid with a concentration of 3.5 mol L^-1 has been produced continuously. Our operando spectroscopic and theoretical studies reveal the dynamic evolution of the catalyst into a nanocomposite composed of Bi⁰ clusters and Bi₂ O₂ CO₃ nanosheets and the pivotal role of Bi⁰ -Bi₂ O₂ CO₃ interface in CO₂ activation and conversion.

Keywords: Bismuth; Carbon Dioxide Reduction; Electrochemistry; Formic Acid; Heterogeneous Catalysis.

Abstract

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