利用循环伏安曲线研究了Ni2、Sn2络合离子的电沉积过程,在镍网基体上采用恒电位法电沉积制备了Ni-Sn合金.室温条件下,在30% KOH溶液中测试纯镍、雷尼-Ni和Ni-Sn合金电极的阴极极化曲线,比较三种电极的催化析氢性能.结果表明,Ni-Sn合金可以提高镍的催化析氢性能.在室温25℃,阴极极化电流密度20 A/dm2和30 A/dm2时,Ni-Sn合金电极的析氢过电位分别为137 mV和161 mV,低于雷尼-Ni电极的299 mV和341 mV.
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