Preparation and Properties of Carbon Nanotubes with Deposited Bimetal Oxide Nanoparticles
L. B. OKHLOPKOVA, O. S. EFIMOVA, L. M. KHITSOVA, Z. R. ISMAGILOV
Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, Russia
Keywords: carbon nanomaterial, bimetallic oxide nanoparticles, catalyst, thermal analysis, FTIR spectroscopy
Pages: 566-575
Abstract
In order to develop new catalysts based on carbon nanotubes (Taunite) with deposited bimetallic oxide nanoparticles for oxidative desulphurization, a series of samples with the composition M1M2O x /Taunite (M1M2 = CeMo, CuMo, CeCu) was prepared by incipient wetness impregnation. The properties of the catalysts were studied by means of FTIR spectroscopy and thermal analysis combined with mass spectrometry. The effects of the nature of a metal precursor and the oxidative treatment of the support on the functionalization of the support surface and support thermal stability were studied. Decomposition of supports with deposited bimetals was determined to start at a temperature lower by 210-285 °C than in the case of non-modified support. The stability of Taunite support against thermal decomposition increases in the following series of metal cations: CuMo < CeMo < CeCu < support without M1M2. The optimal precursors of bimetals for the synthesis of a promising nanosized catalyst M1M2O x /Taunite were selected.
DOI: 10.15372/CSD2020266
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