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Insights into the activity of nickel boride/nickel heterostructures for efficient methanol electrooxidation

Open access
Qi, Yanbin, Zhang, Yue, Yang, Li, Zhao, Yuhan, Zhu, Yihua, Jiang, Hongliang, Li, Chunzhong·2022·Nature Communications

Abstract

Designing efficient catalysts and understanding the underlying mechanisms for anodic nucleophile electrooxidation are central to the advancement of electrochemically-driven technologies. Here, a heterostructure of nickel boride/nickel catalyst is developed to enable methanol electrooxidation into formate with a Faradaic efficiency of nearly 100%. Operando electrochemical impedance spectroscopy and in situ Raman spectroscopy are applied to understand the influence of methanol concentration in the methanol oxidation reaction. High concentrations of methanol inhibit the phase transition of the electrocatalyst to high-valent electro-oxidation products, and electrophilic oxygen species (O* or OH*) formed on the electrocatalyst are considered to be the catalytically active species. Additional mechanistic investigation with density functional theory calculations reveals that the potential-determining step, the formation of *CH 2 O, occurs most favorably on the nickel boride/nickel heterostructure rather than on nickel boride and nickel. These results are highly instructive for the study of other nucleophile-based approaches to electrooxidation reactions and organic electrosynthesis.

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Metadata

Authors
Qi, Y., Zhang, Y., Yang, L., Zhao, Y., Zhu, Y., Jiang, H., & Li, C.
Venue
Nature Communications
Published
2022-08-06
Volume
13
Issue
1
Pages
4602-4602
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4290065442
Cited by
490
References
35
FWCI
17.66
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Insights into the activity of nickel boride/nickel heterostructures for efficient methanol electrooxidation. https://app.cochat.ai/papers/10.1038/s41467-022-32443-5
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Qi, Y., Zhang, Y., Yang, L., Zhao, Y., Zhu, Y., Jiang, H., & Li, C. (2022). Insights into the activity of nickel boride/nickel heterostructures for efficient methanol electrooxidation. Nature Communications. https://doi.org/10.1038/s41467-022-32443-5

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