K. Hadjiivanov

M. Mihaylov, K. Chakarova and K. Hadjiivanov
„Formation of Carbonyl and Nitrosyl Complexes on Titania- and Zirconia-supported Nickel: FTIR Spectroscopy Study“
J. Catal., 228 (2004) 273-281.

M. Mihaylov, K. Hadjiivanov and D. Panayotov
„FTIR Mechanistic Studies on the Selective Catalytic Reduction of NOx with Methane over Ni-containing Zeolites: Comparison between NiY and Ni-ZSM-5“
Appl. Catal., B51 (2004) 33-42.

K. Hadjiivanov, A. Penkova, M. Daturi, J. Saussey and J.-C. Lavalley
„FTIR Spectroscopic Study of Low-temperature Co-adsorption of NO and O2 on H-ZSM-5: evidence of formation of [ONNO]+Species“
Chem. Phys. Lett., 377 (2003) 642-646.

K. Hadjiivanov, E. Ivanova and H. Knözinger
„FTIR Study of Low-temperature CO Adsorption on Y zeolite Exchanged with Be2+, Mg2+, Ca2+, Sr2+ and Ba2+ Cations“
Microporous Mesoporous Mater., 58 (2003) 225-236.

K. Hadjiivanov, H. Knözinger and M. Mihaylov
„FTIR Study of CO Adsorption on Ni-ZSM-5“
J. Phys. Chem. B, 106 (2002) 2618-2624.

K. Hadjiivanov, E. Ivanova and D. Klissurski
„Site-specified and Complex-specified Formation of Geminal Species during Adsorption of Small Molecules on Cationic Sites“
Catal. Today, 70 (2001) 75-84.

M. Mihaylov, K. Hadjiivanov and H. Knözinger
„Formation of Ni(CO)4during the Interaction between CO and Silica-supported Nickel Catalyst:
An FTIR Spectroscopy Study“
Catal. Lett., 76 (2001) 59-63.

K. Hadjiivanov, Tz. Venkov and H.Knözinger
„FTIR Spectroscopic Study of CO Adsoprption on Cu/SiO2: Formation of New Types of Copper Carbonyls“
Catal. Lett., 75 (2001) 55-59.

K. Hadjiivanov,  H. Knözinger, E. Ivanova and L. Dimittrov

„FTIR Study of Low-temperature CO and 15N2adsorption on a CaNaY zeolite: Formation of Site-specified Ca2+(CO)3 and Ca2+(15N2)3 Complexes“
Phys. Chem. Chem. Phys., 3 (2001) 2531-2536.

E. Ivanova, K. Hadjiivanov, D. Klissurski, M. Bevilacqua, T. Armaroli and G. Busca
„FTIR Study of Species Arising after NO Adsorption and NO + O2 Co-adsorption on CoY: Comparison with Co-ZSM-5“
Microporous Mesoporous Mater., 46 (2001) 299-309.

K. Hadjiivanov
„Use of Overtones and Combination Modes for the Identification of Surface NOx Anionic Species by IR Spectroscopy“
Catal. Lett., 68 (2000) 157-161.

K. Hadjiivanov, H. Knözinger, B. Tsyntsarski and L. Dimitrov
„Effect of Water on the Reduction of NOx with Propane on Fe-ZSM-5. An FTIR Mechanistic Study“
Catal. Lett., 62 (1999) 35-40.

K. Hadjiivanov, P. Massiani and H. Knözinger
„Low Temperature CO and 15N2 Adsorption and Co-adsorption on Alkali Cation Exchanged EMT Zeolites: an FTIR  Study“
Phys. Chem. Chem. Phys., 1 (1999) 3831-3838.

K. Hadjiivanov and H. Knözinger
„FTIR Spectroscopic Evidence of Formation of Geminal Dinitrogen Species during the Low-temperature N2 Adsorption on NaY Zeolites“
Catal. Lett., 58 (1999) 21-26.

K. Hadjiivanov
„IR Study of CO and NOx Sorption on Ag-ZSM-5“
Microporous Mesoporous Mater., 24 (1998) 41-49.

K. Hadjiivanov, J.-C. Lavalley, J. Lamotte, F. Mauge, J. Saint-Just and M. Che
„FTIR Study of CO Interaction with Ru/TiO2 Catalysts“
J. Catal., 176 (1998) 415-425.

K. Hadjiivanov, J. Saussey, J.-L. Freysz and J.-C. Lavalley
„FTIR Study of NO + O2 Co-adsorption on H-ZSM-5: Re-assignment of the 2133 cm-1 Band to NO+ Species“
Catal. Lett., 52 (1998) 103-108.
(ranked by ISI among the top 10 Bulgarian papers in chemistry)

K. Hadjiivanov, J. Lamotte and J.-C. Lavalley
„FTIR Study of Low-Temperature CO Adsorption on Pure and Ammonia-Precovered TiO2 (Anatase)“
Langmuir, 13 (1997) 3374-3381.

B. Djonev, B. Tsyntsarski, D. Klissurski and K. Hadjiivanov
„IR Spectroscopic Study of NOx Adsorption and NOx-O2 Coadsorption on Co2+/SiO2 Catalysts“
J. Chem. Soc., Faraday trans., 93 (1997) 4055-4063.

K. Hadjiivanov, M. Kantcheva and D. Klissurski
„IR Study of CO Adsorption on Cu-ZSM-5 and CuO/SiO2 Catalysts:s – and p‑Components of the Cu+-CO Bond“
J. Chem. Soc., Faraday trans., 92 (1996) 4595-4600.

K. Hadjiivanov, D. Klissurski, G. Ramis and G. Busca
„Fourier transform IR Study of NOx Adsorption on a CuZSM-5 DeNOx Catalyst“
Appl. Catal. B, 7 (1996) 251-267.