Electrodeposition Mechanism of Ni-Mo Alloys from Ammoniacal Citrate Solution

被引：5

作者：

Zeng Yue ^{[1
]}

Yao Shuwei ^{[2
]}

Guo Hotong ^{[2
]}

机构：

[1] Hunan Normal Univ, Dept Chem, Changsha 410006, Hunan, Peoples R China

[2] Tianjin Univ, Dept Appl Chem, Tianjin 300072, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 1995年 / 11卷 / 04期

关键词：

Electrodeposition; Ni-Mo alloy; Mechanism;

D O I：

10.3866/PKU.WHXB19950413

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrodeposition mechanism of Ni-Mo alloys from ammoniacal citrate solution was investigated by means of steady-state polarization curves, impedance measurement and XPS analysis. XPS analysis showed the existence of tetravalent molybdenum corresponding to MoO2 on the surface of some deposits. Probably, as an intermediate product, MoO2 was reduced by atomic hydrogen adsorpted on nickel. Electrochemical investigation indicated that [Nicit(NH3)(2)](-) ion is the electro-active species of nickel, though nickel ion exist mainly as [Nicit(NH3)(3)](-) in ammoniacal citrate solution.

引用

页码：351 / 355

页数：5

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