Abstract
The possibility of the single-step formation of nickel- and copper-containing thin-film oxide systems on aluminum by plasma electrolytic oxidation was demonstrated. The resulting structures were found to be active in the reaction of CO oxidation to CO2 in the temperature region 300–500°C. However, the resulting structures exhibited stable catalytic activity only in the simultaneous presence of nickel and copper compounds. The films were studied using X-ray diffraction, X-ray spectroscopic analysis, X-ray photoelectron spectroscopy, and electron microscopy. The resulting films exhibited an essentially inhomogeneous composition through the thickness. Electrolyte elements such as nickel, copper, sodium, and phosphorus were concentrated at the surface. Nickel occurred as Ni2+, and copper occurred as Cu+ and Cu2+. The surface contained carbon in detectable amounts.
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Original Russian Text © I.V. Lukiyanchuk, L.M. Tyrina, V.S. Rudnev, A.Yu. Ustinov, P.M. Nedozorov, M.S. Vasil’eva, 2008, published in Kinetika i Kataliz, 2008, Vol. 49, No. 3, pp. 461–467.
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Lukiyanchuk, I.V., Tyrina, L.M., Rudnev, V.S. et al. Catalytic properties of aluminum/nickel-, copper-containing oxide film compositions. Kinet Catal 49, 439–445 (2008). https://doi.org/10.1134/S0023158408030191
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DOI: https://doi.org/10.1134/S0023158408030191