Investigation of the State of Active Component in Pd/Ga2O3 and Pd/In2O3 Catalysts of Liquid-Phase Hydrogenation of Acetylene into Etylene
N. S. SMIRNOVA1, D. A. SHLYAPIN1, O. V. PROTASOVA1, M. V. TRENIKHIN1, T. I. GULYAEVA1, E. YU. GERASIMOV2, L. S. KIBIS2, N. B. SHITOVA1, D. I. KOCHUBEY2 and P. G. TSYRUL'NIKOV1
1Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
E-mail: everinflame@gmail.com
2Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
Keywords: liquid-phase hydrogenation of acetylene, EXAFS, XPES, TCD, chemisorption of CO, Pd/Ga2O3, Pd/In2O3
Pages: 91–100
Abstract
Catalysts of liquid-phase hydrogenation of acetylene deposited on the oxides of aluminium, gallium, and indium were studied. According to the results of catalytic tests and examination using the physical methods, decoration of the active component by partially reduced support is observed in Pd/Ga2O3 and Pd/In2O3 catalysts. An increase in the atomic catalytic activity for the samples deposited on gallium and indium oxides can be connected with the change of the electron density of the active component or with the formation of bimetallic phases.
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