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纳米多孔Ni-Co电极的制备及其电催化析氢性能

Qi ZHOU,Ji-wei FENG,Zhi-yang LI, Fan WANG,Xiang-rong REN

Journal of Lanzhou University of Technology（2018）

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Abstract
采用真空电弧熔炼与快速凝固相结合的方法制备了Ni30Al70、Ni10Co20Al70合金条带,经过电化学脱合金化除Al,成功得到多孔Ni电极、纳米多孔Ni-Co电极.通过XRD、SEM等微观技术表征了电极的相结构和表面形貌.运用电化学线性扫描(LSV)、电化学阻抗谱(EIS)等手段研究了电极在w(NaOH)=20％溶液中的析氢反应(HER)电催化活性.结果表明:与纳米多孔Ni电极相比,纳米多孔Ni-Co电极具有低的析氢过电位、低的析氢反应电阻及高的比表面积.
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