Corrosion engineering on AlCoCrFeNi high-entropy alloys toward highly efficient electrocatalysts for the oxygen evolution of alkaline seawater

Zhibin Chen; Kang Huang; Bowei Zhang; Jiuyang Xia; Junsheng Wu; Zequn Zhang; Yizhong Huang

doi:10.1007/s12613-023-2624-7

Volume 30 Issue 10

Oct. 2023

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2023 > 30(10): 1922-1932

Zhibin Chen, Kang Huang, Bowei Zhang, Jiuyang Xia, Junsheng Wu, Zequn Zhang, and Yizhong Huang, Corrosion engineering on AlCoCrFeNi high-entropy alloys toward highly efficient electrocatalysts for the oxygen evolution of alkaline seawater, Int. J. Miner. Metall. Mater., 30(2023), No. 10, pp. 1922-1932. https://doi.org/10.1007/s12613-023-2624-7

Cite this article as:

Zhibin Chen, Kang Huang, Bowei Zhang, Jiuyang Xia, Junsheng Wu, Zequn Zhang, and Yizhong Huang, Corrosion engineering on AlCoCrFeNi high-entropy alloys toward highly efficient electrocatalysts for the oxygen evolution of alkaline seawater, Int. J. Miner. Metall. Mater., 30(2023), No. 10, pp. 1922-1932. https://doi.org/10.1007/s12613-023-2624-7

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Research Article

Corrosion engineering on AlCoCrFeNi high-entropy alloys toward highly efficient electrocatalysts for the oxygen evolution of alkaline seawater

+ Author Affiliations

Corresponding authors:
Bowei Zhang    E-mail: bwzhang@ustb.edu.cn

Junsheng Wu    E-mail: wujs@ustb.edu.cn

Yizhong Huang    E-mail: YZHuang@ntu.edu.sg
Received: 13 November 2022; Revised: 5 March 2023; Accepted: 6 March 2023; Available online: 9 March 2023

Abstract

Abstract

Seawater splitting is a prospective approach to yield renewable and sustainable hydrogen energy. Complex preparation processes and poor repeatability are currently considered to be an insuperable impediment to the promotion of the large-scale production and application of electrocatalysts. Avoiding the use of intricate instruments, corrosion engineering is an intriguing strategy to reduce the cost and presents considerable potential for electrodes with catalytic performance. An anode comprising quinary AlCoCrFeNi layered double hydroxides uniformly decorated on an AlCoCrFeNi high-entropy alloy is proposed in this paper via a one-step corrosion engineering method, which directly serves as a remarkably active catalyst for boosting the oxygen evolution reaction (OER) in alkaline seawater. Notably, the best-performing catalyst exhibited oxygen evolution reaction activity with overpotential values of 272.3 and 332 mV to achieve the current densities of 10 and 100 mA·cm⁻², respectively. The failure mechanism of the obtained catalyst was identified for advancing the development of multicomponent catalysts.
- corrosion engineering;
- oxygen evolution reaction catalysts;
- layered double hydroxides;
- seawater splitting;
- failure mechanism

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References(98)

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