东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (5): 704-707.DOI: -

• 论著 • 上一篇    下一篇

脉冲电镀制备Ni-Mo合金镀层及其析氢性能

韩庆;孙克宁;董晓辉;陈建设;   

  1. 东北大学材料与冶金学院;中国铝业股份有限公司山东分公司;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-05-15 发布日期:2013-06-22
  • 通讯作者: Chen, J.-S.
  • 作者简介:-
  • 基金资助:
    国家重点基础研究发展规划项目(2007CB210305);;

Preparation of Ni-Mo alloy coating by pulse plating and its HER activity

Han, Qing (1); Sun, Ke-Ning (1); Dong, Xiao-Hui (2); Chen, Jian-She (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Shandong Plant, Aluminum Corp. of China Ltd., Zibo 255051, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-05-15 Published:2013-06-22
  • Contact: Chen, J.-S.
  • About author:-
  • Supported by:
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摘要： 研究了脉冲电镀法制备Ni-Mo合金镀层过程中电镀条件对Ni-Mo合金镀层组成、表观形貌以及析氢性能的影响.当n(Ni)∶n(Mo)<1时,随着钼盐的加入,镀层中的Mo含量逐渐下降,镀层的析氢过电位升高;利用脉冲电镀制备的Ni-Mo合金镀层均匀、平整、致密,其中w(Mo)在30%左右的Ni-Mo合金镀层呈非晶态结构,具有更高的催化活性(80℃,η200=62 mV)以及较高的耐蚀性.经100 h电解后(33%NaOH溶液中),镀层非晶态结构被破坏.随着Mo的溶出,镀层孔隙率增大并出现鼓泡现象.

关键词: 脉冲电镀, Ni-Mo合金, 析氢活性, Mo含量, 非晶态

Abstract: The effects of different electrodeposition conditions in the pulse plating process to prepare Ni-Mo coating on its composition, apparent morphology and HER (hydrogen evolution reaction) activity were investigated. If the quantitative ratio of nickel to molybdenum is lower than 1 (mol%), the Mo content in the coating decreases gradually with the molybdenum salt adding to the coating, while the corresponding HER overpotential increases. The Ni-Mo coating thus prepared presents amorphous structure (w(Mo)=30%) in combination with homogeneous, smooth and characteristics, especially it provides a higher catalytic activity (80°C, η200=62 mV) with high corrosion resistance. After the galvanostatic electrolysis in 33% NaOH solution for 100 hr, the amorphous structure is destroyed due to Mo dissolution, then the bubbling comes to pass with increasing porosity.

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