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Research areas

• Characterization
  of solid surfaces (oxides, zeolites, metal-organic frameworks (MOF), adsorbents
  and catalysts) using infrared spectroscopy of adsorbed probe molecules and
  determination of the nature, state and reactivity of the surface sites.
• Applications
  of isotopically labelled probe molecules and isotopic mixtures for
  investigation of solid surfaces.
• Study
  of the interactions occurring on the surface of solids in the atmosphere of
  different gases, including in-situ experiments allowing revelation of the
  mechanism and kinetics of the reactions.

Selected papers

1. K. Hadjiivanov, M. Mihaylov, D. Panayotov, E. Ivanova, K. Chakarova,
   “Isotopes in the FTIR investigations of solid surfaces”,
   Spectroscopic Properties of Inorganic and Organometallic Compoundsm, 45 (2014) 43-78. (special periodical reports; RSC)
2. C. Megías-Sayago, K. Chakarova, A. Penkova, A. Lolli, S. Ivanova, S. Albonetti, F. Cavani, J. A. Odriozola,
   “Understanding the Role of the Acid Sites in 5-Hydroxymethylfurfural Oxidation to 2,5-Furandicarboxylic Acid Reaction over Gold Catalysts: Surface Investigation on Ce_xZr_1–xO₂ Compounds”,
   ACS Catalysis, 8 (2018) 11154-11164.
3. R. R. R. Prasad, S. E. Seidner, D. B. Cordes, M. M. Lozinska, D. M. Dawson, M. J. Thompson, T. Düren, K. K. Chakarova, M. Y. Mihaylov, K. I. Hadjiivanov, F. Hoffmann, A. M. Z. Slawin, S. E. Ashbrook, M. L. Clarke, P. A. Wright,
   “STA-27, a porous Lewis acidic scandium MOF with an unexpected topology type prepared with 2,3,5,6-tetrakis(4-carboxyphenyl)pyrazine”,
   Journal of Materials Chemistry A, 7 (2019) 5685-5701.
4. K. Chakarova, I. Strauss, M. Mihaylov, N. Drenchev, K. Hadjiivanov,
   “Evolution of acid and basic sites in UiO-66 and UiO-66-NH₂ metal-organic frameworks: FTIR study by probe molecules”,
   Microporous and Mesoporous Materials, 281 (2019) 110-122.
5. N. L. Drenchev, K. K. Chakarova, O. V. Lagunov, M. Y. Mihaylov, E. Z. Ivanova, I. Strauss, K. I. Hadjiivanov,
   “In situ FTIR spectroscopy as a tool for investigation of gas/solid interaction:water-enhanced CO₂ adsorption in UiO-66 metal-organic framework” (video article),
   Journal of Visualized Experiments, 156 (2020) e60285, doi:10.3791/60285.