阴离子交换膜(AEM)水电解极板镍镀层耐蚀性能研究
董云泽 , 王挺 , 刘浩然 , 廖承亮 , 商雷 , 张学元 , 毛庆
现代化工 ›› 2026, Vol. 46 ›› Issue (7) : 95 -100.
阴离子交换膜(AEM)水电解极板镍镀层耐蚀性能研究
Research on corrosion resistance of nickel plating of water electrolytic plate of anion exchange membrane (AEM)
阴离子交换膜(AEM)水电解制氢技术是绿氢生产的关键技术,而AEM电解槽双极板镀层的耐腐蚀性直接影响AEM电解槽的稳定性与安全性。以氨基磺酸镍为主盐,对比不锈钢表面经化学镀、连续恒流电镀、分次恒流电镀制备的镍基复合镀层的结构与耐蚀性。研究结果表明:冲击镍涂层耦合连续电镀镍形成的复合镀层厚度最大(15.38 μm),且表面最平整,腐蚀电流低至1.175×10-6 A/cm2,在模拟碱性富氧工况下,该镀层展现出优异的钝化能力与耐蚀性,是最适合作为AEM电解槽双极板的镀层工艺。
Anion exchange membrane (AEM) water electrolysis is a key technology for green hydrogen production,and the corrosion resistance of the bipolar plate coating in AEM electrolyzer directly affects the stability and safety of AEM electrolyzer.In this study,nickel sulfamate was used as the main salt to compare the structure and corrosion resistance of nickel-based composite coatings prepared by electroless plating,continuous constant-current electroplating and fractional constant-current electroplating.The results show that the composite coating formed by the impact nickel coating coupled with continuous electroplating exhibits the highest thickness (15.38 μm),the smoothest surface,and the lowest corrosion current with a value of 1.175×10-6 A·cm-2.Under simulated alkaline oxygen-rich conditions,this coating demonstrated excellent passivation capability and corrosion resistance,making it the most suitable plating process for bipolar plates in AEM electrolyzers.
阴离子交换膜(AEM) / 水电解 / 双极板 / 镍镀层 / 耐蚀性
anion exchange membrane (AEM) / water electrolysis / bipolar plate / nickel plating / bipolar plate corrosion resistance
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国家自然科学基金面上项目(22179016)
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