[1]李志文,许 璇,周建新.doi: 10.3969/j.issn.1001-3849.2026.02.018磁场调控制备多孔镍钴电极及其高效析氢性能[J].电镀与精饰,2026,(02):146-153.
　LI Zhiwen,XU Xuan,ZHOU Jianxin.Magnetic field-regulated fabrication and high-efficiency hydrogen evolution performance of porous nickel-cobalt electrodes[J].Plating & Finishing,2026,(02):146-153.
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doi: 10.3969/j.issn.1001-3849.2026.02.018磁场调控制备多孔镍钴电极及其高效析氢性能()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年02
页码:
146-153
栏目:
出版日期:
2026-02-28

文章信息/Info

Title:
Magnetic field-regulated fabrication and high-efficiency hydrogen evolution performance of porous nickel-cobalt electrodes
作者:
李志文; 许 璇; 周建新
(南京工业大学 机械与动力工程学院,江苏 南京 211816)
Author(s):
LI Zhiwen;  XU Xuan;  ZHOU Jianxin
(School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China)
关键词:
析氢反应; 氢气泡模板法; 镍钴多孔催化电极
Keywords:
hydrogen evolution reaction;  hydrogen bubble template method;  Ni-Co porous catalytic electrode
分类号:
TQ153
文献标志码:
A
摘要:
通过磁场调控动态氢气泡模板法在镍网表面制备了镍钴多孔催化剂，系统探究了电沉积液中不同c(Ni2+)﹕c(Co2?)浓度配比对催化剂性能的影响，并与无磁场条件下制备的催化剂进行对比分析。采用SEM、EDS、XRD和拉曼光谱对催化剂表面形貌和结构进行表征，并在1 mol/L KOH溶液中通过线性扫描伏安(LSV)、电化学阻抗谱(EIS)和计时电位稳定性测试评估其电化学性能。结果表明：在0.3 T磁场作用下制备的镍钴催化电极呈现出更丰富的微孔和孔隙等结构。当电沉积液中c(Ni2+)与c(Co2?)浓度比例为2﹕1时，催化剂表现出最佳的HER性能，在10 mA?cm–2电流密度下的析氢过电位仅为42 mV，塔菲尔斜率为55 mV?dec–1，双电层电容值(Cdl)为17.8 mF?cm–2。优化后的镍钴催化电极在1 mol/L KOH碱性溶液中在100mA?cm–2电流密度下持续工作12 h仍保持良好稳定性。
Abstract:
Ni-Co porous catalysts were fabricated on nickel mesh surfaces using a magnetic field-assisted dynamic hydrogen bubble template (DHBT) method. The effects of different c(Ni2+)﹕c(Co2?) concentration ratios in the electrodeposition solution on catalytic performance were systematically investigated, with comparative analysis against catalysts prepared without magnetic fields. Surface morphology and structure of the catalysts were characterized by SEM, EDS, XRD, and Raman spectroscopy. The electrochemical performance was evaluated in 1mol/L KOH solution through linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and chronic potentiometric stability tests. Experimental results demonstrate that Ni-Co catalytic electrodes prepared under 0.3 T magnetic field exhibit enhanced microporous and porous structures with directional particle growth characteristics. The catalyst achieves optimal HER performance at a c(Ni2+)﹕c(Co2?) concentration ratio of 2﹕1, demonstrating a low hydrogen evolution overpotential of 42 mV at 10 mA?cm–2 and a Tafel slope of 55 mV?dec–1. The capacitance value (Cdl) of the bilayer is 17.8 mF?cm–2. The optimized Ni-Co catalytic electrodes maintain excellent stability in 1 mol/L KOH solution, sustaining operation for 12 h at 100 mA?cm–2 without significant degradation.

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更新日期/Last Update: 2026-02-09