Source: http://imc.bas.bg/eng/index.php/staff/41-petrov-ognyan
Timestamp: 2019-04-20 06:18:26+00:00

Document:
1993 Inst. Appl. Miner.- Bulg. Acad. Sci. –Assoc. Prof.
2000 - actually, Central Laboratory of Mineralogy and Crystallography, BAS – head of laboratory “X-ray structural analysis” .
Chairman of the Bulgarian National Crystallographic Committee.
1. Petrov, O.E., T.A. Karamaneva, G.N. Kirov, 1984, Cation distribution in clinoptilolite structure: Natural samples.Compt. Rend. Acad. Bulg. Sci. 37, 6, 785-788.
2. Petrov, O.E., L.D. Filizova, G.N. Kirov, 1985, Cation distribution in clinoptilolite structure: Ba-exchanged sample.Compt. Rend. Acad. Bulg. Sci. 38, 5, 603-606.
3. Kostadinov, I.Z., M. Mihov, V. Hadjiev, M. Iliev, O. Petrov, M. Mateev, S. Tinchev, J. Tihov, E. Dinolova, Ts, Zheleva, V. Popov, G. Tyuliev, V. Kojouharov, Ts. Ivanov, 1988, Investigation of the new high-temperature superconductor BiSrCaCu2Ox. Phisica C, 153-155, 627-628.
Kostadinov, I.Z., V. Hadjiev, J. Tihov, M. Mateev, M. Mihov, O. Petrov, V. Popov, E. Dinolova, Ts. Zheleva, G. Tyuliev, V. Kojouharov, 1989, Structural study, XPS, and Raman spectra of 107K and 114K Tl-based superconductors. Phisica C, 156, 427-433.
Mateev, M.D., I.Z. Kostadinov, B. Alexandrov, J. Tihov, Ts. Ivanov, O.E. Petrov, E. Dinolova, V. Kovachev, 1989, Locallization effects in Nd2-xCexCuO4 electronic superconductor. Phisica C, 162-164, 993-994.
6. Kostadinov, I.Z., Mateev, M.D., Tihiv, J., Skumriev, V., Tsakin, E., Petrov, O.E., Dinolova, E., Kovachev, V., 1989, Tl0.75Pb0.20Sb0.05Ca2Ba3Cu4Oy high Tc superconductor. Phisica C, 162-164, 995-996.
7. Kirov, G.N., O.E. Petrov, 1990, An osumilite-group mineral in the hydrothermal crystallization of quartz. Compt. rend. Acad. bulg. Sci. 43, 7, 49-52.
8. Tarassov, M., Bojiliv, K., Petrov, O.E., 1991, Iron-containing X-ray amorphous tungsten ochre from Grantcharitza deposit (Bulgaria). Compt. rend. Acad. bulg. Sci. 44, 12, 65-68.
9. Petrov, O.E., L.D. Filizova, G.N. Kirov, 1991, Cation distribution in clino-ptilolite structure: Cs-exchanged sample.Compt. rend. Acad. bulg. Sci. 44, 12, 77-80.
10. Petrov, O.E., E. Dyulgerova, R. Popova, G. Opalchenova, 1992, Quantitative powder XRD study of sintered biphase Ca-P-bioceramics during sterilization. Materials Letters, 14, (2-3), 103-106.
11. Petrov, O.E., 1993, Clinoptilolite stability during thermal activation. Program and Abstracts, 4-th Int. Conf. “Zeolite’93”, Boise, USA, 158-160 (ext. abstr.).
12. Petrov, O.E., 1993, Ion-exchange control on clinoptilolite: A powder XRD approach. Program and Abstracts, 4-th Int. Conf. “Zeolite’93”, Boise, USA, 156-158 (ext. abstr.).
13. Tsintsov, Z.L., O.E.Petrov, 1993, Fe-platinum from Novoselci, Bulgaria, Compt. rend. Acad. bulg. Sci. 47, 2, 65-68.
14. Petrov, O.E., 1994, Rietveld refinement of Ba-exchanged clinoptilolite. Int. Conf. “Powder diffraction and crystal chemistry”, June, St. Petersburg, Russia, Program and Abstracts Book, 50-51 (ext. abstr.).
15. Petrov, O.E., 1995, Cation exchange in clinoptilolite: An X-ray powder diffraction analysis. In D.W. Ming and F.A. Mumpton, Eds., Natural Zeolites “93, 271-279, Boise, Idaho.
Georgieva, I., Ivanov, I., Petrov, O.E., 1996, X-ray powder diffraction data for Ba3MnSi2O8 – a new phase in the system BaO-MnO-SiO2. Powder Diffraction, 11, 1, 26-27.
17. Kostova, I., Petrov, O.E., Kortenski, J., 1996, Mineralogy, geochemistry, and pyrite content of Bulgarian subbituminous coals, Pernik Basin. In R.Gayer and I. Harris Eds., Coalbed Methane and Coal Geology, Geological Society Special Publication No 97, London, 301-314.
18. Opalchenova, G., Dyulgerova, E., Petrov, O.E, 1996, A study of the influence of biphase calcium phosphate ceramics on bacterial strains – in vitro aqpproach. J. BioMed. Mat. Res. 31:219-226.
Opalchenova, G., Dyulgerova, E., Petrov, O.E, 1996, Effect of calcium phosphate ceramics on gram-negative bacteria resistant to antibiotics. J. BioMed. Mat. Res. 32(3): 473-479.
Lilkov, V., Dimitrova, E., Petrov, O.E., 1997, Hydration process of cement containing fly ash and silica fume: the first 24 hours. Cem. Concr. Res., V. 27, 4, 577-588.
Lilkov, V., O. Petrov, 1997, Hydration of cement mixed with “Pozzolit” mineral additive. Proc. 10-th Int. CongressChem. Cem: Additives, Admixtures, Characterization Techniques, ed. Harald Justnes; Gotheburg, Sweden, June,. (3ii11).
24. Lilkov, V., N. Djabarov, G. Bechev, O. Petrov, 1998, Properties and hydration products of lightweight and expansive cements. Part 2: Hydration products. Cem Concr. Res. V.29/10, 1641-1646.
Petrov, O.E., Dyulgerova, E., Petrov, L., Popova, R., 2001, Characterization of calcium phosphate phases obtained during the preparation of sintered biphase Ca-P ceramics. Materials Letters, 48, 3-4, 162-167.
Vassileva, B., O.E. Petrov, S.M. Hammad, 2001, Effect of natural sorbents during clean-up of cation polluted water: I. An example on Egyptian bentonite - Bulgarian clinoptilolite filter. Compt. rend. Acad. bulg. Sci., 54, 12, 63-66.
27. Kostiv-Kytin, V., S. Ferdov, O. Petrov, 2002, Hydrothermal synthesis and successive transformation of paranatisite into natisite. Compt. rend. Acad. bulg. Sci ,55, 2, 61-64.
Ferdov, S., V. Kostiv-Kytin, O. Petrov, 2002, A rapid method for synthesizing the layered titanosolicate JDF-L1.Chem. Comm., 16 (issue), 1786-1787.
Ferdov, S., V. Kostiv-Kytin, O. Petrov, 2002, Improved powder diffraction patterns for synthetic paranatisite and natisite. Powder Diffraction17(3), 234-237.
Ferdov, S., C. Lengauer, O. Petrov,V. Kostov-Kytin, 2003, A rapid method for low-temperature synthesis of the Na-analogue of the microporous titanosilicate GTS-1. Journal of Materials Science, 39, 4343-4344.
31. Filcheva, E., K. Chakalov, T. Popova, K. Mitov, O. Petrov, 2003, A new method for preparation of humic containing materials for their use in ecology. Proc. of Xth Balkan Mineral Processing Congress “Mineral processing in the 21st century”, eds: L.Kuzev, I.Nishkov, A.Boteva, D.Mochev, 15-20 June, Varna Bulgaria, 757-762.
32. Chakalov, K., T. Popova, K. Mitov, E. Filcheva, O. Petrov, Influence of natural and modified zeolites on the mobility of some heavy metals in soils and model experiments. Proc. of Xth Balkan Mineral Processing Congress“Mineral processing in the 21st century”, eds: L.Kuzev, I.Nishkov, A.Boteva, D.Mochev, 15-20 June, Varna Bulgaria, 780-786.
33. Popova, T., O. Petrov, K. Chakalov, K. Mitov, E. Filcheva, Modified zeolites – properties and application in ecology. Proc. of Xth Balkan Mineral Processing Congress “Mineral processing in the 21st century”, eds: L.Kuzev, I.Nishkov, A.Boteva, D.Mochev, 15-20 June, Varna Bulgaria, 844-849 Proc. of Xth Balkan Mineral Processing Congress “Mineral processing in the 21st century”, eds: L.Kuzev, I.Nishkov, A.Boteva, D.Mochev, 15-20 June, Varna Bulgaria, 757-762.
Kostov-Kytin, V., B. Mihailova, S. Ferdov, O. Petrov (2004): Temperature-induced phase transformations of layered titanosilicate JDF-L1. Solid State Sciences, 6, (2004) p. 967-972.
Ferdov, S., V. Kostov-Kytin, O. Petrov,, 2005, Synthesis and characterization of nanosized Na- GTS-1.Nanoscience & Nanotechnology, 5, eds. E. Balabanova, I. Dragieva, Heron Press, Sofia, 2005, 167-169.
38. Petrova, R., A. Ivanov, M. Kadiiski, O. Petrov, V. Kostov-Kytin, M. Tarassov.2005. Single crystal structure analysis of Sr-bearing chabazite from Kayryaka quarry, Bourgas region, Bulgaria, and its Sr-exchanged form. J. Bulg. Geolog. Society, Proc of the Jub. Intern. Conf. “80 years Bulgarian Geological Society”, 75-78.
39. Yoleva, А., P. Djambazov, S. Djambazov, O. Petrov. 2005. Structural changes in opal from stambolovo deposit (bulgaria) after thermal treatment. – XV Scientific Conference on Glass and Ceramics, September 2005, Varna.
43. Kostov-Kytin, V., S. Ferdov.Yu. Kalvachev, B. Mihailova, O. Petrov, 2007, Hydrothermal synthesis of microporous titanosilicates. Mic. Mes. Mat., 105, 232-238.
44. Ilieva, Albena, Boriana Mihailova, Zdravko Tsintsov and Ognyan Petrov, 2007, Structural state of microcrystalline opals: A Raman spectroscopic study. Am. Mineral., V.92, 1325-1333.
45. Stoilov, V., O. Petrov, Milen Kadyiski, Ivan Donchev, 2007, XRD structural characteristics of fluorapatite from Jurassic phosphorite concretions, Gintsi deposit. Proc. of the Bulg. Geological Society “Geosciences 2007”, 65-67 (special issue).
47. Yaneva, V., О. Petrov, V. Petkova, 2008, Structural and Spectroscopic Studies of Nanosized Appatite (Syrian). Mater. Res. Bull., (accepted).
49. Ilieva R., R. Titorenkova, E. Dyulgerova, O. Petrov, L. Konstantinov. Effect of zirconia additive on the microstructure and phase composition of hydroxyapatite-based nanocomposites. Nanoscience and Nanotechnology, Issue 8, 169-172.
50. Petrov, O. E.,V. Stoilov, Y. Tzvetanova, P. Andreeva. 2008. Application of full profile Rietveld-based XRD quantitative analysis to geological samples. – In: 60 Annual of Geology in Sofia University “St. Kl. Ohridski”,99–104.
51. Dimova, L., G. Kirov, O. Petrov, N. Lihareva, Y. Tsvetanova, 2008, Zn-exchanged clinoptilolite from Beli plast deposit, Eastern Rhodopes, Bulgaria. National Conference “Geosciences”, Sofia, 21-22.
Zidarov, N., O. Petrov, M. Tarassov, Z. Damyanov, E. Tarassova, Y.Kalvachev, V.Petkova, Z. Zlatev, 2008, Mn-rich norsethite from Kremikovtsi ore deposit, National Conference “Geosciences”, Sofia, 27-29.

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