Organic molecule-assisted intermediate adsorption for conversion of CO2 to CO by electrocatalysis

Kai Zhang; Wenyuan Wang; Ying Wang; Wenhui Wang; Nanyang Wang; Jun Pu; Qiulong Li; Yagang Yao

doi:10.1039/D3CC04916G

Organic molecule-assisted intermediate adsorption for conversion of CO₂ to CO by electrocatalysis†

Kai Zhang,‡^a Wenyuan Wang,‡^a Ying Wang,^a Wenhui Wang,^a Nanyang Wang,^a Jun Pu,

^ab Qiulong Li

^ac and Yagang Yao

*^a

Author affiliations

* Corresponding authors

^a National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
E-mail: ygyao2018@nju.edu.cn

^b Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, China

^c College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China

Abstract

Currently, Zn-based catalysts for electrochemical CO₂ reduction reactions are limited by their moderate carbophilicity, resulting in low catalytic activity and CO selectivity. To this end, we selected 5-mercapto-1-methylimidazole, a small molecule that possesses the ability to both coordinate to Zn and interact with the intermediates, to modify electrochemically deposited Zn nanosheets. The interaction between them effectively enhances intermediate adsorption by lowering the Gibbs free energy, which leads to an increase of the Faraday efficiency to 1.9 times and the CO partial current density to 3.0 times that of the pristine sample (−1.0 V vs. RHE).

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DOI: https://doi.org/10.1039/D3CC04916G
Article type: Communication
Submitted: 06 Oct 2023
Accepted: 13 Nov 2023
First published: 18 Nov 2023

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Chem. Commun., 2023,59, 14819-14822

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Organic molecule-assisted intermediate adsorption for conversion of CO₂ to CO by electrocatalysis

K. Zhang, W. Wang, Y. Wang, W. Wang, N. Wang, J. Pu, Q. Li and Y. Yao, Chem. Commun., 2023, 59, 14819 DOI: 10.1039/D3CC04916G

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Organic molecule-assisted intermediate adsorption for conversion of CO₂ to CO by electrocatalysis†

Abstract

Supplementary files

Article information

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Organic molecule-assisted intermediate adsorption for conversion of CO₂ to CO by electrocatalysis

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