Selective CO2 electroreduction to methanol via enhanced oxygen bonding

Gong Zhang, Tuo Wang, Mengmeng Zhang, Lulu Li, Dongfang Cheng, Shiyu Zhen, Yongtao Wang, Jian Qin, Zhi-Jian Zhao and Jinlong Gong ()
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Gong Zhang: Tianjin University
Tuo Wang: Tianjin University
Mengmeng Zhang: Tianjin University
Lulu Li: Tianjin University
Dongfang Cheng: Tianjin University
Shiyu Zhen: Tianjin University
Yongtao Wang: Tianjin University
Jian Qin: Tianjin University
Zhi-Jian Zhao: Tianjin University
Jinlong Gong: Tianjin University

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract The reduction of carbon dioxide using electrochemical cells is an appealing technology to store renewable electricity in a chemical form. The preferential adsorption of oxygen over carbon atoms of intermediates could improve the methanol selectivity due to the retention of C–O bond. However, the adsorbent-surface interaction is mainly related to the d states of transition metals in catalysts, thus it is difficult to promote the formation of oxygen-bound intermediates without affecting the carbon affinity. This paper describes the construction of a molybdenum-based metal carbide catalyst that promotes the formation and adsorption of oxygen-bound intermediates, where the sp states in catalyst are enabled to participate in the bonding of intermediates. A high Faradaic efficiency of 80.4% for methanol is achieved at −1.1 V vs. the standard hydrogen electrode.

Date: 2022
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DOI: 10.1038/s41467-022-35450-8

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