Silicate anodic coatings on aluminum containing oxides of cobalt and/or copper and/or cerium and their activity in CO oxidation

被引：0

作者：

L. M. Tyrina

V. S. Rudnev

I. V. Lukiyanchuk

A. Yu. Ustinov

P. M. Nedozorov

M. S. Vasilyeva

N. S. Kaminskii

V. V. Permyakov

机构：

[1] Russian Academy of Sciences,Institute of Chemistry, Far

[2] Far East Federal University,Eastern Branch

[3] Vladivostok State University of Economics and Service,undefined

来源：

Protection of Metals and Physical Chemistry of Surfaces | 2015年 / 51卷

关键词：

Cerium; Cerium Oxide; Plasma Electrolytic Oxidation; Plasma Electrolytic Oxidation Coating; Plasma Electrolytic Oxide Layer;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Coatings on aluminum alloy containing one or several crystalline oxides of cobalt, copper, and cerium deposited in different sequences have been obtained by a combination of methods of plasma electrolytic oxidation and impregnation followed by annealing. It has been established that the composition of surface layers and the catalytic activity of composites depend on the sequence of deposition of active components on the substrate. Cu2+, Cu+, Co3+, Ce4+, and Ce3+ are present in the surface and subsurface layers. All the studied composites are characterized by catalytic activity in the reaction of oxidation of CO into CO2. Of the studied composites, the following are most active: CexOy/CuO/SiO2 + Al2O3/Al, CexOy/Co3O4/CuO/SiO2 + Al2O3/Al, and CexOy/CuO/Co3O4/SiO2 + Al2O3/Al.

引用

页码：821 / 828

页数：7

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