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

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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引用次数: 0

摘要

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

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Fe-Doped Ni3S2/Ni0.96S 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 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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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).