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Selective CO₂ electroreduction to methanol via enhanced oxygen bonding.

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.

SUBMITTER: Zhang G

PROVIDER: S-EPMC9755525 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Selective CO2 electroreduction to methanol via enhanced oxygen bonding.

Zhang Gong G Wang Tuo T Zhang Mengmeng M Li Lulu L Cheng Dongfang D Zhen Shiyu S Wang Yongtao Y Qin Jian J Zhao Zhi-Jian ZJ Gong Jinlong J

Nature communications 20221215 1

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 ...[more]

PMID: 36522322

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