TEXTURAL AND CATALYTIC FEATURES OF SILICON SURFACE MODIFIED WITH ZnO IN THE REACTION OF HOMOGENOUS-HETEROGENEOUS ACTIVATION OF PROPANE-OXYGEN MIXTURES AT LOW PRESSURES

Authors

  • Petros S. Gukasyan Institute of Chemical Physics after A.B. Nalbandyan, NAS RA of Armenia, Armenia
  • Sevda B. Mkhitaryan National Agrarian University of Armenia, Armenia
  • Samvel M. Vardapetyan Chair of Pharmaceutical Chemistry and Pharmacognosy, Institute of Pharmacy, YSU, Armenia
  • Verzhine A. Sarkeziyan National Agrarian University of Armenia, Armenia
  • Oleg A. Kamalyan National Agrarian University of Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2022.56.1.041

Keywords:

modification of the silica surface, fractal surface dimension, zinc oxide, chemical transport reaction, low-temperature propane oxidation

Abstract

The textural and catalytic characteristics of the surface of silica gel modified with zinc oxide by the sol-gel method and by means of a chemical transport reaction (CTR) have been studied. It was found that catalytic activity of the obtained contacts depends on both the nature and the structural and textural characteristics of the supported ZnO. Using the example of the reaction of low-temperature oxidation of propane, it was found that lower limit of the release of radicals from the surface into the volume with the CTR modification method is lower by 15–20 degrees than in the case of the sol-gel method. It was shown that the catalyst obtained by applying the active phase on the surface of the support by the CTR method is more efficient due to the energy homogeneity of its active centers and the texture characteristics of the surface.

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Published

2022-03-09

How to Cite

Gukasyan, Petros S., Sevda B. Mkhitaryan, Samvel M. Vardapetyan, Verzhine A. Sarkeziyan, and Oleg A. Kamalyan. 2022. “TEXTURAL AND CATALYTIC FEATURES OF SILICON SURFACE MODIFIED WITH ZnO IN THE REACTION OF HOMOGENOUS-HETEROGENEOUS ACTIVATION OF PROPANE-OXYGEN MIXTURES AT LOW PRESSURES”. Proceedings of the YSU B: Chemical and Biological Sciences 56 (1 (257):41-48. https://doi.org/10.46991/PYSU:B/2022.56.1.041.

Issue

Section

Chemistry

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