Efficient electrochemical transformation of CO2 to C2/C3 chemicals on benzimidazole-functionalized copper surfaces

Shenghong Zhong; Xiulin Yang; Zhen Cao; Xinglong Dong; Sergey M. Kozlov; Laura Falivene; Jing-Kai Huang; Xiaofeng Zhou; Mohamed N. Hedhili; Zhiping Lai; Kuo-Wei Huang; Yu Han; Luigi Cavallo; Lain-Jong Li

doi:10.1039/C8CC04735A

Efficient electrochemical transformation of CO₂ to C₂/C₃ chemicals on benzimidazole-functionalized copper surfaces†

Shenghong Zhong,

‡^a Xiulin Yang,‡^a Zhen Cao,‡^a Xinglong Dong,^a Sergey M. Kozlov,^a Laura Falivene,^a Jing-Kai Huang,^a Xiaofeng Zhou,^a Mohamed N. Hedhili,^b Zhiping Lai,

^a Kuo-Wei Huang,

^a Yu Han,

*^a Luigi Cavallo

*^a and Lain-Jong Li*^a

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* Corresponding authors

^a Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
E-mail: lance.li@kaust.edu.sa, luigi.cavallo@kaust.edu.sa, yu.han@kasut.edu.sa

^b Imaging and Characterization Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia

Abstract

A simple and efficient catalyst, benzimidazole (BIMH)-modified copper foil, is developed to enhance the selective conversion of CO₂ to C₂/C₃ products. The overall faradaic efficiency (FE) for CO₂ reduction reaches 92.1% and the undesired hydrogen evolution reaction (HER) is lowered to a FE of 7% at −1.07 V_RHE.

Chemical Communications

Efficient electrochemical transformation of CO₂ to C₂/C₃ chemicals on benzimidazole-functionalized copper surfaces†

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Efficient electrochemical transformation of CO₂ to C₂/C₃ chemicals on benzimidazole-functionalized copper surfaces

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