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

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-06-19 DOI:10.1021/acs.langmuir.5c02010

Longzhen Li, Shuangyan Lin, Zhikun Xu, Tianle Li, Zhifeng Zhao

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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 Ni₃S₂/Ni_0.96S on nickel foam (Fe–Ni₃S₂/Ni_0.96S/NF) was prepared through sulfurization of the Fe-doped Ni(OH)₂ 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–Ni₃S₂/Ni_0.96S demonstrates exceptional OER performance, achieving an overpotential of only 320 mV at an industrial current density of 1000 mA cm^–2 in alkaline freshwater. Notably, in alkaline seawater, Fe–Ni₃S₂/Ni_0.96S maintains outstanding activity (397 mV @ 1000 mA cm^–2) and operational stability (at least 150 h at 100 mA cm^–2). Furthermore, the Fe–Ni₃S₂/Ni_0.96S/NF||Pt/C requires a low voltage of 1.73 V to deliver 100 mA cm^–2 and exhibits at least 200 h stability, demonstrating its great potential for industrial seawater electrolysis applications.

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泡沫镍上掺铁Ni3S2/Ni0.96S：一种高效耐氯工业海水析氧反应电催化剂

设计有效的海水电解析氧反应（OER）电催化剂需要同时优化催化活性和耐氯腐蚀性。通过对fe掺杂Ni(OH)2前驱体进行硫化，制备了fe掺杂Ni3S2/Ni0.96S泡沫镍（Fe-Ni3S2 /Ni0.96S/NF）。硫化过程诱导了电子结构调制，优化了电荷转移动力学，并产生了高密度的催化活性位点。结果表明，Fe-Ni3S2 /Ni0.96S表现出优异的OER性能，在碱性淡水中工业电流密度为1000 mA cm-2时，过电位仅为320 mV。值得注意的是，在碱性海水中，Fe-Ni3S2 /Ni0.96S保持了出色的活性（397 mV @ 1000 mA cm-2）和运行稳定性（在100 mA cm-2下至少150小时）。此外，Fe-Ni3S2 /Ni0.96S/NF||Pt/C需要1.73 V的低电压才能提供100 mA cm-2，并具有至少200 h的稳定性，显示其在工业海水电解应用中的巨大潜力。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).