Intermetallics as cathode materials in the electrolytic hydrogen production

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• 作者：Stojic ; Dragica Lj. ; Cekic ; Bozidar D. ; Maksic ; Aleksandar D. ; Kaninski ; Milica P. Marceta ; et. al.
• 关键词：Electrolysis ; Hydrogen production ; Intermetallic phases ; Ionic activators
• 刊名：International Journal of Hydrogen Energy
• 出版年：2005
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：January, 2005
• 卷：30
• 期：1
• 页码：21-28
• 文件大小：1.08 M

摘要

The intermetallics of transition metals have been investigated as cathode materials for the production of hydrogen by electrolysis from water–KOH solutions, in an attempt to increase the electrolytic process efficiency. We found that the best effect among all investigated cathodes (Hf₂Fe, Zr–Pt, Nb–Pd(I), Pd–Ta, Nb–Pd(II), Ti–Pt) exhibits the Hf₂Fe phase. These materials were compared with conventional cathodes (Fe and Ni), often used in the alkaline electrolysis. A significant upgrade of the electrolytic efficiency using intermetallics, either in pure KOH electrolyte or in combination with ionic activators added in situ, was achieved.