Preparation and catalysis property of CuO/Al2O3 micro-arc oxidation composite coating

被引：0

作者：

Liu, Dong-Jie ^{[1
]}

Jiang, Bai-Ling ^{[1
]}

Liu, Zheng ^{[1
]}

Wang, Ya-Ming ^{[2
]}

Ge, Yan-Feng ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China

[2] School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2013年 / 23卷 / 12期

关键词：

Graphene - Degradation - Electric network parameters - Semiconductor doping - Catalysis - Catalytic oxidation - Composite films - Oxide films - Citrus fruits - Copper oxides - Electrolytes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The micro-arc oxidation technology was employed to directly prepare a CuO/Al2O3 composite coating film on an alunimium substrate, which was also modified by doping electrolyte. The properties of CuO/Al2O3 coating film were investigated focusing on the adhesion of different elements on the coating surface, the effect of electrical parameters on the surface morphologies and the pore diameter, and the catalytic degradation of methyl orange by CuO/Al2O3 composite film was also investigated. The results show that micro-arc oxidation technology can be introduced to prepare a CuO/Al2O3 composite film. The content of oxygen reaches 33.7% in the CuO lattice. The pore diameter and number of the composite film are seriously influenced by the electrical parameters. With the increase of the voltage and the duty ratio (Φ) and the decrease of the frequency, the surface pore diameter and roughness of the composite film increase, while the number of holes decrease. The degradation rate of methyl orange reaches 70% by the catalysis of the CuO/Al2O3 composite coating film for 10 h at ordinary temperatures and pressures.

引用

页码：3348 / 3353