Τα ερευνητικά ενδιαφέροντα του κυρίου Θεοχάρη είναι:

Η μελέτη της προσρόφησης σε πορώδη στερεά, οι επιφανειακές ιδιότητες των ζεολίθων, μικροπορώδεις φάσεις ALPO-n και αντιδράσεις στην επιφάνειά τους με αέρια και ατμούς, επιφανειακή δομή και ιδιότητες οξειδίων και υδροξειδίων του ασβεστίου και του μαγνησίου, χημείας στερεάς κατάστασης οργανικών κρυστάλλων.

Άλλα ερευνητικά ενδιαφέροντα περιλαμβάνουν: (1) Επιφανειακή χημεία ζεολίθων: μελέτη δειγμάτων ZSM-5 που περιέχουν διαφορετικές αναλογίες Si:Al, παρασκευασθέντων από μη-οργανικές μεθόδους μήτρας. Σύγκριση με δείγματα παρασκευασθέντα με συμβατικές μεθόδους. Ο στόχος είναι να κατανοηθεί ο ρόλος του αλουμινίου και της διευθέτησής του στην επιφανειακή χημεία των ζεολίθων.

(2) Ο χαρακτηρισμός της επιφανειακής χημείας δειγμάτων ασβεστίτη από διαφορετικά Κυπριακά ορυχεία γνωστά για τη λειτουργία τους κατά την κλασσική περίοδο. (3) Μελέτη της επιφανειακής δομής σειράς μεσοπορωδών στερεών τεχνολογικής σπουδαιότητας.

(4) Η μελέτη της επιφανειακής χημείας καινοτόμων καταλυτών εκπομπής αυτοκινήτων βασισμένων στο δημήτριο.

(5) Ο χημειομετρικός χαρακτηρισμός Κυπριακών παραδοσιακών προϊόντων.

 

 

Petrakis, D. E.; Pashalidis, I.; Theocharis, C. R.; Hudson, M. J.; Pomonis, P. J. “Scaling Dimensions of Nitrogen Adsorption Characteristics in Modulated Mesoporous Aluminophosphates,” J. Colloid & Interface Sci. 1997, 185, 104-110. Kyriakou, G.; Paschalidis, I.; Theocharis, C. R. “Preparation of Mesoporous Ceria with the Use of Humic Acid as Matrix,” In Kaneko, K.; Kanoh, H.; Hanzawa, Y., Eds., Fundamentals of Adsorption 2002, 7, 201-207. Kyriakou, G.; Theocharis, C. R. “The Anomalous Sorptive Behaviour of ZSM-5 and Silicalite I: Observation of Low-Pressure Hysteresis in Nitrogen Adsorption,” Stud. Surf. Sci. Catal. 2002, 144, 709-716. Christophidou, M.; Theocharis, C. R. “Preparation and Surface Characterisation of Novel Ceria-Copper and Ceria-Manganese Mixed Oxides,” Stud. Surf. Sci. Catal. 2002, 144, 75-82. Kokkinofta, R.; Petrakis, P. V.; Mavromoustakos, T.; Theocharis, C. R. “Authenticity of the Traditional Cypriot Spirit “Zivania” on the Basis of Metal Content using a Combination of Coupled Plasma Spectroscopy and Statistical Analysis,” J. Agric. Food Chem. 2003, 51, 6233-6239. Theocharis, C. R.; Kyriacou, G; Christophidou, M. “Preparation and Characterization of Nanoporous Ceria Containing Heteroatoms, With and Without a Matrix,” Adsorption 2005, 11, 763-767. Kokkinofta, R. I.; Theocharis, C. R. “Chemometric Characterization of the Cypriot spirit “Zivania”,” J. Agric. Food Chem. 2005, 53, 5067-5073. Tillirou, A.; Theocharis, C. R. “Preparation of Mesoporous Ceria in the Presence of Non-Aqueous Phases,” “Studies in Surface Science and Catalysis,” Elsevier Science Publishers 2006, 160, 639-644. Attipa, C.; Theocharis, C. R. “Preparation and Characterization of Nanoporous Ceria Containing Heteroatoms,” “Studies in Surface Science and Catalysis,” Elsevier Science Publishers 2006, 160, 615-620. Panayi, E.; Theocharis, C. R. “Study of the Anomalous Behaviour of MFI Zeolites Towards Nitrogen Adsorption,” “Studies in Surface Science and Catalysis,” Elsevier Science Publishers 2006, 160, 273-278. Hapeshi, E.; Theocharis, C. R. “Preparation and Characterization of Nanoporous Solids With Composition CexMn1-xO2-y With x Values 0 to 1,” “Studies in Surface Science and Catalysis,” Elsevier Science Publishers 2006, 160, 645-650. Ballabio, D.; Kokkinofta, R.; Todeschini, R.; Theocharis, C. R. “A Classification Model Built By Means Of Artificial Neural Networks For The Characterization Of The Traditional Cypriot Spirit Zivania,” Chemometrics and Intelligent Laboratory Systems 2007, 87, 78-84. 

The Role of the Solvent in Determining the Surface Texture of Magnesium Hydroxide, C.A. Papatryfonos and C.R. Theocharis, AR Journal Chem, 2, 1-10, (2017) The Effect of Surface and Textural Characteristics on the Uranium Adsorption by Nanoporous Titania, P. Paschalidou, I. Liatsou, I. Pashalidis and C. R. Theocharis, Journal of Radioanalytical and Nuclear Chemistry, 314, 1141-1147, (2017) Using Swellable Polymers as Structure Directing Scaffolds in Mesoporous Titania Synthesis, C. A. Papatryfonos and C. R. Theocharis, Materials Sciences and Applications, 9, 211-227, (2018) Tuning the Porosity and Surface Characteristics of Nanoporous Titania using Non-Ionic Surfactant Reverse Micelles, P. Paschalidou and C.R. Theocharis, RSC Advances, 8, 29890 – 29898 (2018) The Effect of Surface Properties on the Uranium Adsorption by Mesoporous Ceria, P. Paschalidou, I. Liatsou, I. Pashalidis , and C. R Theocharis, Journal of Radioanalytical and Nuclear Chemistry, 318, 2193–2197 (2018) Surface Properties of Ceria Synthesised Using Triton-X Based Reverse MicroEmulsions, P. Paschalidou and C.R. Theocharis, RSC Advances, 9, 7025 – 7031, (2019) Discrimination of Cheddar and Kefalotyri Cheese Samples: Analysis by Chemometrics of Proton-NMR and FTIR Spectra, M. Tarapoulouzi and C.R. Theocharis, J. Agriculture Science and Technonology B, 9, 347-355, (2019)  Comparison of textural characteristics of ceria solids prepared via Triton X reverse micelles and in situ synthesized Ce(OⁱPr)₄ and Ce(OⁱPr)₃ precursors, Materials Sciences and Applications, 10, 585-599, (2019) Discrimination of Cheddar, Kefalotyri and Halloumi cheese samples by the chemometric analysis of FTIR and 1H-NMR spectra, M. Tarapoulouzi and C. R. Theocharis, Journal of Food Process Engineering, 45(7), 13933 +7 (2022)
Uranium isotope (U-232) removal from waters by biochar fibers: An adsorption study in the sub-picomolar concentration range, M. Philippou, I. Pashalidis, C. R. Theocharis, Molecules, 27, 6765 +9 (2022)
Discrimination of Anari Compared With Halloumi Cheese Samples Regarding Species’ Origin by FTIR Measurements and Chemometrics, M. Tarapoulouzi and C. R. Theocharis, Analytica, 4, 374–384, (2023)
A pre-trial study to identify species of origin in Halloumi cheese utilising chemometrics with Near Infrared and Hyperspectral Imaging technologies, M. Tarapoulouzi, N. Logan, M. Hardy, H. Montgomery, S. A. Haughey, C. T. Elliott and C. R. Theocharis, Analytica, 5, 17-27 (2024)
Discrimination of cheese products regarding milk species’ origin using FTIR, 1H-NMR and chemometrics, Applied Sciences, M. Tarapoulouzi, I. Pashalidis and C.R. Theocharis, Applied Sciences, 14, 2584-11pp, (2024)
A preliminary study for determination of seasonal variations on
Halloumi cheese by using near-infrared spectroscopy and chemometrics, M. Tarapoulouzi, J. A. Entrenas, D. C. Pérez-Marín, I. Pashalidis and C. R. Theocharis, Processes, 12, 1517-11pp, (2024)