Identifying an Interfacial Stabilizer for Regeneration-Free 300 h Electrochemical CO2 Reduction to C2 Products

DOI number:10.1021/jacs.2c11109

Journal:JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Place of Publication:WASHINGTON

Abstract:The electrochemical CO2 reduction reaction (CO2RR) to produce high value-added hydrocarbons and oxygenates presents a sustainable and compelling approach toward a carbon-neutral society. However, uncontrollable migration of active sites during the electrochemical CO2RR limits its catalytic ability to simultaneously achieve high C2 selectivity and ultra -durability. Here, we demonstrate that the generated interfacial CuAlO2 species can efficiently stabilize the highly active sites over the Cu-CuAlO2-Al2O3 catalyst under harsh electrochemical conditions without active sites regeneration for a long-term test. We show that this unique Cu-CuAlO2-Al2O3 catalyst exhibits ultradurable electrochemical CO2RR performance with an 85% C2 Faradaic efficiency for a 300 h test. Such a simple interfacial engineering design approach unveiled in this work would be adaptable to develop various ultradurable catalysts for industrial-scale electrochemical CO2RR.

Co-author:Wang, Xinyu, Jiang, Yawen, Mao, Keke, Gong, Wanbing, Duan, Delong, Ma, Jun, Zhong, Yuan, Li, Jiawei, Liu, Hengjie, Long, Ran, Xiong, Yujie

First Author:Wang, Xinyu

Correspondence Author:Long, R, Xiong, YJ

Document Code:WOS:000899041900001

Document Type:Article

Volume:144

Issue:49

Page Number:22759-22766

ISSN No.:0002-7863

Translation or Not:no