Effect of three types of surfactants on fabrication of Cu-coated graphite powders

被引：21

作者：

Chen, Li ^{[1
]}

Yu, Gang ^{[1
]}

Chu, Yujiao ^{[1
]}

Zhang, Jun ^{[1
]}

Hu, Bonian ^{[2
]}

Zhang, Xueyuan ^{[1
]}

机构：

[1] Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Inst Technol, Dept Mat & Chem Engn, Hengyang 421008, Peoples R China

来源：

ADVANCED POWDER TECHNOLOGY | 2013年 / 24卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Cu-coated graphite powders; Surfactants; Flow electrodeposition; Deposition potential; COMPOSITE COATINGS; CATIONIC SURFACTANT; CARBON NANOTUBES; ELECTRODEPOSITION; COPPER; NICKEL; NANOPARTICLES; VOLTAMMETRY; DEPOSITION; BATH;

D O I：

10.1016/j.apt.2012.07.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Cu-coated graphite powders were fabricated by electrodeposition using a device that we developed in our lab. The effect of different type surfactants on the dispersion and stability of graphite particles in a copper sulfate electrolyte was investigated by UV-Vis spectrophotometry. The electrochemical behavior of the stainless steel cathode plate and graphite particles were examined by linear sweep voltammetry. It shows that surfactants improved dispersion and stability of graphite particles in electrolyte, produced different electrochemical polarization behaviors on graphite surface and cathodic stainless plate, respectively. In the presence of surfactants, copper was apt to be deposited on graphite particle surface. The optimum surfactant content in electrolyte is 150 mg dm(-3) for all of three types of surfactants. Hexade-cyltrimethyl ammonium bromide (CTAB) is the most effective surfactant for improving the quality of copper coated graphite powders among the three type surfactants. (C) 2012 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：281 / 287

页数：7

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