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

Author

Listed:
  • Bryan H. R. Suryanto

    (The University of New South Wales)

  • Yun Wang

    (Griffith University)

  • Rosalie K. Hocking

    (Swinburne University of Technology)

  • William Adamson

    (The University of New South Wales)

  • Chuan Zhao

    (The University of New South Wales)

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.

Suggested Citation

  • Bryan H. R. Suryanto & Yun Wang & Rosalie K. Hocking & William Adamson & Chuan Zhao, 2019. "Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13415-8
    DOI: 10.1038/s41467-019-13415-8
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    Cited by:

    1. Zengyao Wang & Jiyi Chen & Erhong Song & Ning Wang & Juncai Dong & Xiang Zhang & Pulickel M. Ajayan & Wei Yao & Chenfeng Wang & Jianjun Liu & Jianfeng Shen & Mingxin Ye, 2021. "Manipulation on active electronic states of metastable phase β-NiMoO4 for large current density hydrogen evolution," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    2. Duraivel, Malarkodi & Nagappan, Saravanan & Prabakar, Kandasamy, 2023. "Anion intercalated nickel iron hydrogen phosphate hydrate for full water splitting application," Renewable Energy, Elsevier, vol. 219(P2).
    3. Yilin Deng & Wei Lai & Bin Xu, 2020. "A Mini Review on Doped Nickel-Based Electrocatalysts for Hydrogen Evolution Reaction," Energies, MDPI, vol. 13(18), pages 1-17, September.
    4. Mengyun Hou & Lirong Zheng & Di Zhao & Xin Tan & Wuyi Feng & Jiantao Fu & Tianxin Wei & Minhua Cao & Jiatao Zhang & Chen Chen, 2024. "Microenvironment reconstitution of highly active Ni single atoms on oxygen-incorporated Mo2C for water splitting," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    5. Kamran Dastafkan & Xiangjian Shen & Rosalie K. Hocking & Quentin Meyer & Chuan Zhao, 2023. "Monometallic interphasic synergy via nano-hetero-interfacing for hydrogen evolution in alkaline electrolytes," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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