Structure of electrodeposited cobalt

被引：56

作者：

Cohen-Hyams, T ^{[1
]}

Kaplan, WD ^{[1
]}

Yahalom, J ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2002年 / 5卷 / 08期

关键词：

D O I：

10.1149/1.1491335

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The structure of cobalt formed by electrodeposition and the influence of the pH of the plating solution and the cathode potential was studied by potentiodynamic measurements and X-ray diffraction. It was found that the level of overpotential significantly affects the structure of the formed cobalt. When electrodeposition is performed far from equilibrium conditions, i.e., at a high overpotential, face-centered cubic (fcc) cobalt is deposited while at low overpotential hexagonal close packed Co is formed with a lower rate of hydrogen evolution. A higher overpotential is needed in a neutral compared to acidic solution in order to enhance the evolution of hydrogen that is required for the formation of fcc cobalt. (C) 2002 The Electrochemical Society.

引用

页码：C75 / C78

页数：4

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