СО Oxidation on Palladium Catalysts on Supports (ZrО2, СеО2, ZrО2-СеО2, СеО2-CuО)/Stainless Steel Prepared by Means of Plasma Deposition
V. A. BORISOV1,2, S. S. SIGAEVA1, G. I. SUPRUNOV3, E. A. ANOSHKINA1, V. L. TEMEREV1, P. G. TSYRULNIKOV1
1Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
2Omsk State Technical University, Pr. Mira 11, Omsk 644040 (Russia)
3Public Corporation Research Institute of Technology and Industrial Engineering of Engine Production, Ul. Bogdana Khmelnitskogo 283, Omsk 644021 (Russia)
Keywords: окисление СО, катализаторы, приготовленные плазменным методом, [Pd(NH)](NO), ZrО-СеО, сканирующая электронная микроскопия, рентгенофазовый анализ, CO oxidation, catalysts, plasma-assisted preparation, [Pd(NH)](NO), ZrО-СеО, scanning electron microscopy, X-ray phase analysis
Abstract
Effect of the nature and content of secondary support, as well as the content and nature of palladium precursor on the catalytic activity in CO oxidation is considered for Pd/MeO x /Ni-Al/SS catalysts where SS is stainless steel. It is demonstrated that the Ni-Al coating used to increase oxide adhesion to the metal substrate can serve as a catalyst and secondary support for palladium. It was determined that the best palladium precursor is [Pd(NH3)4](NO3)2. On the basis of the results of catalytic tests, the most active samples activated and not activated by palladium were revealed. All the catalysts are characterized by means of X-ray phase analysis and scanning electron microscopy with local microanalysis.
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