Ni-Sn合金的电沉积过程与析氢性能研究  

Studies on Electrodeposition Process and Hydrogen Evolution Performance of Ni-Sn Alloy

作　　者：朱艳兵[1] 隋然[1] 王杰鹏[1] 张爱国[1] 马强[1] 梅林[2] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027 [2]邯郸钢铁集团有限责任公司,河北邯郸056015

出　　处：《电镀与精饰》2015年第4期42-46,共5页Plating & Finishing

摘　　要：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20A/dm2和30A/dm2时,Ni-Sn合金电极的析氢过电位分别为137mV和161mV,低于雷尼-Ni电极的299mV和341mV。Electrodeposition processes of Ni2 ＋and Sn2 ＋complexing ions were studied by cyclic voltammetry,and Ni-Sn alloy was prepared by constant potential electrodeposition method on nickel mesh substrate.Cathodic polarization curves of pure Ni electrode,Raney-Ni electrode and Ni-Sn alloy electrode were tested in 30% KOH solution at room temperature,and catalytic hydrogen evolution performance of the three electrodes were also compared.Results showed that Ni-Sn alloy could enhance the catalytic hydrogen evolution performance of Ni.At 25 ℃,when the cathodic polarization current were 200mA/cm2 and 300mA/cm2,the hydrogen evolution overpotential of Ni-Sn electrode were 137mV and 161mV respectively,which were lower than that of Raney-Ni electrode.

关 键 词：Ni-Sn合金 碱性水电解 析氢过电位 电沉积 

分 类 号：TQ153.2[化学工程—电化学工业]