非晶态MmNi_（5．20）合金薄膜的制备及析氢反应电催化性能的研究  

Preparation of Amorphous MmNi_(5.20) Film and Study on Its Electrochemical Property for HER

作　　者：胡伟康[1] 张允什[1] 宋德瑛[1] 汪根时[1] 罗道军 申泮文[1] 

机构地区：[1]天津南开大学新能源材料化学研究所

出　　处：《功能材料》1994年第6期515-517,共3页Journal of Functional Materials

基　　金：国家863高技术探索资助

摘　　要：用离子束溅射法制备非晶态ＭｍＮｉ＿（５．２０）合金薄膜。该非晶态合金薄膜在３０ｗｔ％ＫＯＨ，７０℃作析氢反应电极。实验结果表明，该电极不但具有良好的析氢电催化活性和电化学稳定性，而且具有很好的抗氢脆和抗粉化能力。交流阻抗分析表明，非晶态ＭｍＮｉ＿（５．２０）合金电极析氢反应过程主要由电化学反应步骤控制。Amorphous MmNi_(5,20) alloy films wereprepared by means of ion beam sputtering. The filmelectrodes were investigated in 30wt%KOH solutionat 70 ℃ as cathodes for hydrogen evolution reaction(HER).The results showed that amorphousMmNi_(5.20)film electrodes had excellentelectrochenucal stability and electrocatalysis activityfor HER.In addition the film electrodes had strongresistance to hydrogen embrittlement under long-term electrolysis in 2 00mA·cm￣(-2). The A.C.impedance analysis indicated that the process of HERon the film electrodes was controlled byelectrochemical reaction step.

关 键 词：非晶态合金 MmNi合金薄膜 制备 催化 析氢反应 

分 类 号：TG139.8[一般工业技术—材料科学与工程]