化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (6) : 208-213. DOI: 10.19817/j.cnki.issn1006-3536.2026.06.004

科学研究

Ni₃V₁Fe₁S_x/NF纳米材料催化剂的制备及其电催化析氧性能研究

^1,2,3*

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Preparation and electrocatalytic oxygen evolution performance of Ni₃V₁Fe₁S_x/NF nanomaterial catalysts

Guo Yifan¹, Ding Jiaqi¹, Chen Yu¹, Lu Zhi¹, Wang Guangxin^1,2,3

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Received
2025-07-03
Issue Date	Revised Date
2026-06-18	2025-07-03

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摘要

采用水热法,使用硫代乙酰胺(TAA)作为硫源,在泡沫镍(NF)基底上制备出Ni₃V₁Fe₁S_x/NF纳米材料催化剂。通过X射线衍射仪、场发射扫描电子显微镜、透射电子显微镜、X射线光电子能谱仪、比表面积及孔隙度分析仪对催化剂的微观形貌、化学结构、元素价态、比表面积和孔隙度进行分析测试,采用电化学工作站测试了催化剂的电化学性能。结果表明:Ni₃V₁Fe₁S_x/NF独特的纳米结构有利于提供更多的活性位点,从而提高电催化析氧性能;以1mol/L KOH作为电解液,在析氧反应中TAA掺杂量为1.86mmol的催化剂仅需224mV的低过电势即可达到20mA/cm²的电流密度,Tafel斜率为49.25mV/dec;在10mA/cm²电流密度下,经过100h稳定性测试后该催化剂电压稳定在0.5V左右,未出现明显的变化,显示出优异的催化稳定性。

Abstract

A Ni₃V₁Fe₁S_x/NF nanomaterial catalyst was synthesized on a nickel foam substrate via a hydrothermal method using thioacetamide (TAA) as the sulfur source.The microstructure,chemical structure,elemental valence states,specific surface area,and porosity of the catalyst were characterized and analyzed by X-ray diffractometer (XRD),field-emission scanning electron microscope (FE-SEM),transmission electron microscope (TEM),X-ray photoelectron spectrometer (XPS),and specific surface area and porosity analyzer.Additionally,an electrochemical workstation was employed to test the electrochemical performance of the catalyst.The results indicated that the unique nanostructure of Ni₃V₁Fe₁S_x/NF was conducive to providing more active sites,thereby enhancing the electrocatalytic oxygen evolution performance.When 1mol/L KOH was used as the electrolyte,the catalyst with a TAA doping amount of 1.86mmol only required a low overpotential of 224mV to achieve a current density of 20mA/cm² in the oxygen evolution reaction,with a Tafel slope of 49.25mV/dec.Under a current density of 10mA/cm²,after 100 hours of stability testing,the voltage of the catalyst remained stable at approximately 0.5V without significant changes,demonstrating excellent catalytic stability.

关键词

纳米材料 / 催化剂 / 电催化 / 析氧反应 / 泡沫镍

Key words

nanomaterials / catalyst / electrocatalysis / oxygen evolution reaction / nickel foam

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Ni₃V₁Fe₁S_x/NF纳米材料催化剂的制备及其电催化析氧性能研究[J]. 化工新型材料, 2026, 54(6): 208-213 DOI:10.19817/j.cnki.issn1006-3536.2026.06.004

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