Characterization of porous Ni₃Al electrode for hydrogen evolution in strong alkali solution

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• 作者：Liang Wu ; Yuehui He ; Ting Lei ; Bo Nan ; Nanping Xu ; Jin Zou ; Baiyun Huang ; C.T. Liu
• 关键词：A. Alloys ; B. Powder metallurgy ; C. Electrochemical techniques ; D. Electrochemical properties
• 刊名：Materials Chemistry and Physics
• 出版年：2013
• 出版时间：15 August, 2013
• 年：2013
• 卷：141
• 期：1
• 页码：553-561
• 全文大小：2124 K

文摘

The hydrogen evolution reactions on porous Ni₃Al electrodes, as well as their electrochemical properties in 6?M KOH solutions have been investigated by the polarization measurement, cyclic voltammetry and EIS technique. Results show that the porous Ni₃Al electrodes with lower pore size possess higher catalytic activity for hydrogen evolution in KOH solutions. Their stability in 6?M KOH at 298?K and 358?K under the condition of the reverse polarization is shown to be very good. The electrodes exhibit long term stability and retain high catalytic performance under industrial conditions.