Heterogeneous catalysis : theory and experiment

The research activities include studies of kinetics of catalytic reactions and chemisorption of reactants on oxides, as well as the synthesis of mixed oxide catalysts.
 

MAIN RESEARCH TOPICS

  • Kinetics of reduction of oxides on supports
  • Catalysts for methanol synthesis.
  • Oxidative dehydrogenation of C2-C4 alkanes on mixed oxide catalysts.  


METHODS

  • Kinetic measurements with differential flow reactor, pulse method and gravimetric analysis using vacuum microbalance.
  • X-ray diffraction, XPS spectroscopy, TPD, TPR, mass-spectrometry
  • Computer simulation for modeling of reaction kinetics.


MAIN ACHIEVEMENTS

  • Formulation of a new kinetic model of autocatalytic reaction; application of this model to the reduction of oxide systems.
  • Formulation of a model for the adsorption of the reactants in the methanol synthesis on the catalyst used in this reaction.
  • Synthesis and characterisation of a new class of transition metals telluromolybdates.
  • Elucidation of the role of alkali metal promotors of the V205/Ti02 catalysts on kinetics of reduction and efficiency in the reaction of oxidative dehydrogenation of propane.
  • Demonstration of good performance of supported chromia catalysts in oxidative dehydrogenation of isobutane.
  • Formulation of kinetic models for propane oxidative dehydrogenation over V205/Ti02 catalysts.

 

Currently our research effort is focused on the development of the technology of catalytic combustion of organic pollutants and finding efficient catalysts for this process.

MAIN RESEARCH TOPICS

  • Catalytic combustion of volatile organic compounds, also chlorinated and nitrogenated
  • Selective catalytic reduction of NOx with ammonia and hydrocarbons
  • Preparation and physicochemical characterization of catalysts for environmental protection
  • Catalytic Oxidation of Soot

METHODS

  • X-ray diffraction,
  • XPS,
  • FTIR and Raman spectroscopies,
  • electron microscopy,
  • catalytic activity tests

MAIN ACHIEVEMENTS

  • Discovery and experimental confirmation of the phenomenon of thermal spreading in the V2O5, MoO3/TiO2, Al2O3 systems
  • Determination of the mechanism of spreading of transition metal oxides over surfaces of oxide supports
  • Experimental confirmation that the structure of vanadia monolayer on anatase is independent of the preparation method, structure and modification of Ti02
  • Preparation and introduction into industrial practice of the mixed oxide catalyst for combustion of oxygenated and nitrogenated organic compounds.