Electrocatalytic behavior of amorphous Ni-Co-P coating for hydrogen evolution in alkaline medium

被引：0
|
作者：
Li, Ning [1 ]
Ding, Da-Yong [1 ]
Li, De-Yu [1 ]
机构：
[1] Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China
来源：
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2005年 / 37卷 / 09期
关键词：
Amorphous alloys - Catalysis - Electrochemistry - Electrodes - Hydrogen - Microstructure - Morphology - Nickel alloys - Polarization - Surfaces;
D O I：
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中图分类号：
学科分类号：
摘要：
Amorphous coatings Ni-Co-P were prepared by electrodepositon. The surface morphology and microstructure of Ni-Co-P coatings were observed by means of SEM and XRD. It was found that the hydrogen evolution reaction (HER) of amorphous Ni-Co-P electrode was enhanced after the HF acid treatment procedure. The apparent morphology before and after treatment was contrasted. Compared with Ni-Co and Ni electrodes, electrocatalytic efficiency was evaluated on the basis of electrochemical steady-state Tafel polarization and potentiostatic test in 1 mol/L NaOH solution. The apparent energy of activation were 19.56, 46.29 and 57.03 kJ&middotmol-1 for the HER respectively. Amorphous coatings Ni-Co-P is catalytically more active.
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页码：1185 / 1188
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