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Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide

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Suryanto, Bryan H. R., Wang, Yun, Hocking, Rosalie K., Adamson, William, Zhao, Chuan·2019·Nature Communications
DOI 10.1038/s41467-019-13415-8
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Abstract

Efficient generation of hydrogen from water-splitting is an underpinning chemistry to realize the hydrogen economy. Low cost, transition metals such as nickel and iron-based oxides/hydroxides have been regarded as promising catalysts for the oxygen evolution reaction in alkaline media with overpotentials as low as ~200 mV to achieve 10 mA cm−2, however, they are generally unsuitable for the hydrogen evolution reaction. Herein, we show a Janus nanoparticle catalyst with a nickel–iron oxide interface and multi-site functionality for a highly efficient hydrogen evolution reaction with a comparable performance to the benchmark platinum on carbon catalyst. Density functional theory calculations reveal that the hydrogen evolution reaction catalytic activity of the nanoparticle is induced by the strong electronic coupling effect between the iron oxide and the nickel at the interface. Remarkably, the catalyst also exhibits extraordinary oxygen evolution reaction activity, enabling an active and stable bi-functional catalyst for whole cell water-splitting with, to the best of our knowledge, the highest energy efficiency (83.7%) reported to date.

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Metadata

Authors
Suryanto, B. H. R., Wang, Y., Hocking, R. K., Adamson, W., & Zhao, C.
Venue
Nature Communications
Publisher
Springer Science and Business Media LLC
Published
2019-12-06
Volume
10
Issue
1
Pages
5599-5599
ISSN
2041-1723 (ISSN-L)
DOI
10.1038/s41467-019-13415-8
OpenAlex
W2993968409
Cited by
740
References
12
FWCI
16.70
Type
journal article
Language
en
Open access
gold
Licence

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CoChat. (2026). Citation check: Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide. https://app.cochat.ai/papers/10.1038/s41467-019-13415-8
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Suryanto, B. H. R., Wang, Y., Hocking, R. K., Adamson, W., & Zhao, C. (2019). Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide. Nature Communications. https://doi.org/10.1038/s41467-019-13415-8

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