Ni-La-P合金电镀及其析氢电催化性能研究  

Study on Ni-La-P Alloy Eletrodeposition and Its Electrocatalytic Property for Hydrogen Evolution

作　　者：肖友军[1] 钟一平[1] 

机构地区：[1]南方冶金学院材化学院,江西赣州341000

出　　处：《表面技术》2003年第5期31-32,42,共3页Surface Technology

摘　　要：　用正交实验研究了Ni La P电沉积的最佳工艺条件,以此合金作阴极测得析氢阴极极化曲线,结果表明,合金电极上析氢速率比Ni电极上约大10倍,析氢电势正移300～400mV,显示出含稀土La的镍基合金具有较高的析氢电催化活性。根据XPS谱图讨论了析氢电催化的机理。Ni-La-P alloy is prepared by electrdoposition in aqueous solution, Electrocatalytic behavior of hydroger reaction on the obtained alloy deposits is studied with cathodic polarization curves in 1mol.L-1 KOH solution. The results show that the rate of hydrogen evolution on the nickel base alloy containing rare earth elements is ten times higher than that on the nickel electrode. The potential of hydrogen evolution move posilively for more than 300mv . The alloy electrodes display higher electrocatalytic activity of hydrogen evolution. The electrocatalytic mechanism of hydrogen evolution is discussed based on the data of XPS.

关 键 词：Ni-La-P合金 电催化 析氢 

分 类 号：TG174.54[金属学及工艺—金属表面处理] TG146.44[金属学及工艺—金属学]