Ontology type: schema:ScholarlyArticle
2011-12
AUTHORSR. V. Gulyaev, L. S. Kibis, O. A. Stonkus, A. V. Zadesenets, P. E. Plyusnin, Yu. V. Shubin, S. V. Korenev, A. S. Ivanova, E. M. Slavinskaya, V. I. Zaikovskii, I. G. Danilova, A. I. Boronin, V. A. Sobyanin
ABSTRACTGold-palladium catalysts supported on cerium oxide were synthesized with the double complex salts. X-ray photoelectron spectroscopy (XPS) and other physicochemical methods (TEM, TPR) were used to demonstrate that synthesis of highly active palladium catalysts requires the oxidative treatment stimulating the formation of a catalytically active surface solid solution PdxCe1−xO2, which is responsible for the lowtemperature activity (LTA) in the reaction CO + O2. In the case of gold catalysts, active sites for the lowtemperature oxidation of CO are represented by gold nanoparticles and its cationic interface species. Simultaneous deposition of two metals increases the catalyst LTA due to interaction of both gold and palladium with the support surface to form a Pd1−xCexO2 solid solution and cationic interface species of palladium and gold on the boundary of Pd-Au alloy particles anchored on the solid solution surface. More... »
PAGES123-136
http://scigraph.springernature.com/pub.10.1134/s0022476611070171
DOIhttp://dx.doi.org/10.1134/s0022476611070171
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