Carbon Monoxide Oxidation on Pd/MeOх /M Catalysts, where MeOх /M Carrier is Prepared by Plasma Spraying (MeOх : Al2О3, Al2О3-СеО2, Al2О3-MnO2; M: Ni-Al/Stainless Steel)
V. A. BORISOV1,2, S. S. SIGAEVA1,3, G. I. SUPRUNOV4, E. A. ANOSHKINA1, V. L. TEMEREV1, A. L. IVANOV5, and P. G. TSYRUL'NIKOV1
1Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, Russia
2Omsk State Technical University, Omsk, Russia
3Dostoevsky Omsk State University, Omsk, Russia
4Omsk Research Institute of Technology and Organization of Engine Production JSC, Omsk, Russia
5Siberian Automobile and Highway University, Omsk, Russia
Keywords: CO oxidation, catalysts, plasma application, scanning electron microscopy, X-ray phase analysis
Pages: 145-152
Abstract
The activity in the carbon monoxide (CO) oxidation reaction of МеО х /М and Pd/МеО х /Ni-Al/НС catalysts where MeO x : Al2О3, Al2О3-СеО2, Al2О3-MnО2 carrier is applied to Ni-Al/НС (grids made of HC with an evaporated Ni-Al layer) was studied. Samples, in which grids made from fechral and nichrome were used, were prepared for comparison. It was demonstrated that intermediate Ni-Al coating itself serving to increase adhesion of oxides to a metal substrate exhibited the catalytic activity. The most active samples activated and not activated by palladium were determined according to the results of catalytic trials. All catalysts were characterized by X-ray phase analysis, scanning electron microscopy methods. The most active Pd/Al2O3/Ni-/HC sample was additionally studied by scanning electron microscopy (SEM) with local analysis.
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