Fe-Doped Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S on Nickel Foam: A High-Efficiency and Chlorine-Resistant Electrocatalyst for Industrial Seawater Oxygen Evolution Reaction

Designing effective oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis necessitates the simultaneous optimization of catalytic activity and chlorine corrosion resistance. Herein, Fe-doped Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S on nickel foam (Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S/NF) was prepared through sulfurization of the Fe-doped Ni(OH)<sub>2</sub> precursor. The sulfurization process induces electronic structure modulation, optimizing charge transfer kinetics and generating a high density of catalytically active sites. As a result, Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S demonstrates exceptional OER performance, achieving an overpotential of only 320 mV at an industrial current density of 1000 mA cm<sup>-2</sup> in alkaline freshwater. Notably, in alkaline seawater, Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S maintains outstanding activity (397 mV @ 1000 mA cm<sup>-2</sup>) and operational stability (at least 150 h at 100 mA cm<sup>-2</sup>). Furthermore, the Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S/NF||Pt/C requires a low voltage of 1.73 V to deliver 100 mA cm<sup>-2</sup> and exhibits at least 200 h stability, demonstrating its great potential for industrial seawater electrolysis applications.

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Publication Details

Journal
Langmuir
Published
2025-06-19
DOI
https://doi.org/10.1021/acs.langmuir.5c02010
Citations
2
Primary Topic
Electrocatalysts for Energy Conversion
Type
article
Field-Weighted Citation Impact
0.73

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article

Fe-Doped Ni3S2/Ni0.96S on Nickel Foam: A High-Efficiency and Chlorine-Resistant Electrocatalyst for Industrial Seawater Oxygen Evolution Reaction

Zhifeng Zhao, Tianle Li, Longzhen Li, Shuang‐Yan Lin et al.
2 citations
Langmuir
Electrocatalysts for Energy Conversion
0.73
article

Fe-Doped Ni3S2/Ni0.96S on Nickel Foam: A High-Efficiency and Chlorine-Resistant Electrocatalyst for Industrial Seawater Oxygen Evolution Reaction

Zhifeng Zhao, Tianle Li, Longzhen Li, Shuang‐Yan Lin, Zhikun Xu
article en
2 citations

Abstract

Designing effective oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis necessitates the simultaneous optimization of catalytic activity and chlorine corrosion resistance. Herein, Fe-doped Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S on nickel foam (Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S/NF) was prepared through sulfurization of the Fe-doped Ni(OH)<sub>2</sub> precursor. The sulfurization process induces electronic structure modulation, optimizing charge transfer kinetics and generating a high density of catalytically active sites. As a result, Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S demonstrates exceptional OER performance, achieving an overpotential of only 320 mV at an industrial current density of 1000 mA cm<sup>-2</sup> in alkaline freshwater. Notably, in alkaline seawater, Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S maintains outstanding activity (397 mV @ 1000 mA cm<sup>-2</sup>) and operational stability (at least 150 h at 100 mA cm<sup>-2</sup>). Furthermore, the Fe-Ni<sub>3</sub>S<sub>2</sub>/Ni<sub>0.96</sub>S/NF||Pt/C requires a low voltage of 1.73 V to deliver 100 mA cm<sup>-2</sup> and exhibits at least 200 h stability, demonstrating its great potential for industrial seawater electrolysis applications.

LangmuirVol. 41(25)
Guangdong University of Petrochemical Technology (CN)
Guangdong University of Petrochemical Technology
Life below water
Openalex Percentile: Top 30%
Electrocatalysts for Energy Conversion
0.73
DOISourceOpenAlex
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