从氨性柠檬酸溶液中电沉积Ni-Mo的机理研究

被引：18

作者：

曾跃

姚素薇

郭鹤桐

机构：

[1] 湖南师范大学化学系!长沙,天津大学应用化学系!天津,天津大学应用化学系!天津

来源：

物理化学学报 | 1995年 / 04期

关键词：

电沉积; Ni－Mo合金; 机理;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

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 ekist mainly as[Nicit(NH3)3]- in ammoniacal citrate solution.

引用

页码：351 / 355

页数：5