The Oxidation of Carbon Monoxide as an Integrated Part
of the Coupled Alkane Oxidation Process: Gas-Phase Oxidation
over Supported Metal-Complex Catalysts
E. G. Chepaikina, *, A. P. Bezruchenkoa, G. N. Menchikovaa, O. P. Tkachenkob,
L. M. Kustovb, c, and A. V. Kulikovd
Translated by E. Glushachenkova
aMerzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences,
Chernogolovka, Moscow oblast, 142432 Russia
bZelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
cDepartment of Chemistry, Moscow State University, Moscow, 119991 Russia
dInstitute of Problems of Chemical Physics, Russian Academy of Sciences,
Chernogolovka, Moscow oblast 142432 Russia
Correspondence to: *e-mail: echep@ism.ac.ru
Received 20 February, 2017
Abstract—Heterogeneous rhodium–copper chloride catalysts for gas-phase oxidation processes were prepared via the cold impregnation of γ-Al2O3 with aqueous RhCl3 and CuCl2 solutions. Heptafluorobutyric or pentafluorobenzoic acids were additionally deposited onto these catalysts to simulate the action of homogeneous rhodium–copper chloride catalytic systems in the coupled alkane–carbon monoxide oxidation reaction. The catalysts were studied in the reactions of carbon monoxide oxidation and coupled propane–CO oxidation with dioxygen by diffuse reflectance IR Fourier transform spectroscopy (DRIFTS) and electron paramagnetic resonance (EPR). The obtained data indicate the probable transfer of electrons between rhodium and copper compounds.
Keywords: carbon monoxide, catalytic oxidation, rhodium chloride, copper chloride, γ-aluminum oxide, DRIFTS, EPR
DOI: 10.1134/S0023158418020039