Catalytically Active Cobalt-Copper-Oxide Layers on Aluminum and Titanium

被引：7

作者：

Lukiyanchuk, I. V. ^{[1
]}

Chernykh, I. V. ^{[1
]}

Rudnev, V. S. ^{[1
,2
]}

Ustinov, A. Yu ^{[1
,2
]}

Tyrina, L. M. ^{[1
]}

Nedozorov, P. M. ^{[1
]}

Dmitrieva, E. E. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Chem, Far Eastern Branch, Vladivostok 690022, Russia

[2] Far Eastern Fed Univ, Vladivostok 690950, Russia

来源：

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2014年 / 50卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

PLASMA-ELECTROLYTIC OXIDATION; CARBON(II) OXIDE; DEEP OXIDATION; CO OXIDATION; CATALYSTS; COATINGS; SURFACE; NICKEL; NI;

D O I：

10.1134/S2070205114020105

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Oxide coatings modified with cobalt and copper oxides are obtained on titanium and aluminum by means of combining plasma electrolytic oxidation (PEO) in silicate and zirconate electrolytes and impregnation in nitrate solutions followed by annealing. The effect of PEO coatings that were preliminarily formed on aluminum and titanium in different electrolytes on the composition and surface morphology of cobalt-copper oxide composites and their activity with respect to CO oxidation is studied. The maximum total concentration of cobalt and copper is found to be typical of composite layers based on SiO2 + Al2O3/Al, while the minimum content is observed in the case of layers based on ZrO2 + TiO2/Ti, the PEO bases being characterized by the highest and lowest water-absorbing capacity, respectively. The effect of PEO coatings on the catalytic activity of cobalt-copper oxide catalysts decreases in the series SiO2 + TiO2/Ti > SiO2 + Al2O3/Al > Ce2O3 + ZrO2 + TiO2/Ti > ZrO2 + TiO2/Ti.

引用

页码：209 / 217

页数：9

共 24 条

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