TY  - JOUR
AU  - Marković, Zoran M.
AU  - Todorović-Marković, Biljana
AU  - Mohai, I
AU  - Karoly, Z
AU  - Szepvolgyi, J
AU  - Farkas, Z
AU  - Nikolić, Zoran M.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2910
AB  - Results on studies of molecular spectra emitted in the initial stages of fullerene synthesis during processing of graphite powder in RF thermal plasma conditions are presented in this work. CN-usually present in carbon plasmas-and C-2 were found as dominant molecular species. The role of CN radicals on the fullerene formation was discussed in detail. Intensities of CN and C-2 lines were studied against the composition of gas phase and the feed rate of graphite powder. The rotational-vibrational temperatures of CN species were calculated by fitting the experimental spectra to the simulated ones. It was concluded that in the plasma region CN radicals could be formed by the reaction Of C-2 with atomic nitrogen at smaller loads. This reaction lowered the yield of fullerenes. At larger loads, C2 formation was decreased due to lower temperature of the particles compared to smaller load. The CN radicals were produced by the surface reaction of the hot carbon particles with nitrogen atoms. Results confirmed that for effective fullerene synthesis, the nitrogen content of the precursors and the plasma gases should be minimized.
T2  - Fullerenes Nanotubes and Carbon Nanostructures
T1  - Optical emission study of RF thermal plasma during fullerene synthesis
VL  - 13
IS  - 3
SP  - 215
EP  - 226
DO  - 10.1081/FST-200056236
ER  - 

@article{
author = "Marković, Zoran M. and Todorović-Marković, Biljana and Mohai, I and Karoly, Z and Szepvolgyi, J and Farkas, Z and Nikolić, Zoran M.",
year = "2005",
abstract = "Results on studies of molecular spectra emitted in the initial stages of fullerene synthesis during processing of graphite powder in RF thermal plasma conditions are presented in this work. CN-usually present in carbon plasmas-and C-2 were found as dominant molecular species. The role of CN radicals on the fullerene formation was discussed in detail. Intensities of CN and C-2 lines were studied against the composition of gas phase and the feed rate of graphite powder. The rotational-vibrational temperatures of CN species were calculated by fitting the experimental spectra to the simulated ones. It was concluded that in the plasma region CN radicals could be formed by the reaction Of C-2 with atomic nitrogen at smaller loads. This reaction lowered the yield of fullerenes. At larger loads, C2 formation was decreased due to lower temperature of the particles compared to smaller load. The CN radicals were produced by the surface reaction of the hot carbon particles with nitrogen atoms. Results confirmed that for effective fullerene synthesis, the nitrogen content of the precursors and the plasma gases should be minimized.",
journal = "Fullerenes Nanotubes and Carbon Nanostructures",
title = "Optical emission study of RF thermal plasma during fullerene synthesis",
volume = "13",
number = "3",
pages = "215-226",
doi = "10.1081/FST-200056236"
}

Marković, Z. M., Todorović-Marković, B., Mohai, I., Karoly, Z., Szepvolgyi, J., Farkas, Z.,& Nikolić, Z. M.. (2005). Optical emission study of RF thermal plasma during fullerene synthesis. in Fullerenes Nanotubes and Carbon Nanostructures, 13(3), 215-226.
https://doi.org/10.1081/FST-200056236

Marković ZM, Todorović-Marković B, Mohai I, Karoly Z, Szepvolgyi J, Farkas Z, Nikolić ZM. Optical emission study of RF thermal plasma during fullerene synthesis. in Fullerenes Nanotubes and Carbon Nanostructures. 2005;13(3):215-226.
doi:10.1081/FST-200056236 .

Marković, Zoran M., Todorović-Marković, Biljana, Mohai, I, Karoly, Z, Szepvolgyi, J, Farkas, Z, Nikolić, Zoran M., "Optical emission study of RF thermal plasma during fullerene synthesis" in Fullerenes Nanotubes and Carbon Nanostructures, 13, no. 3 (2005):215-226,
https://doi.org/10.1081/FST-200056236 . .

TY  - JOUR
AU  - Todorović-Marković, Biljana
AU  - Marković, Zoran M.
AU  - Mohai, I
AU  - Karoly, Z
AU  - Farkas, Z
AU  - Nikolić, Zoran M.
AU  - Szepvolgyi, J
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2863
AB  - In this work, the results of an optical emission study of fullerene synthesis in an inductively coupled radio frequency thermal plasma reactor are presented. The emission spectroscopy studies, based on the use of the Swan C-2 (0, 1) and CN (0,0) vibrational emission spectra, were carried out to determine the plasma temperature. The evaporation process of graphite powder was observed by scanning electron microscopy.
T2  - Journal of the Serbian Chemical Society
T1  - Optical diagnostics of fullerene synthesis in the RF thermal plasma process
VL  - 70
IS  - 1
SP  - 79
EP  - 85
DO  - 10.2298/JSC0501079T
ER  - 

@article{
author = "Todorović-Marković, Biljana and Marković, Zoran M. and Mohai, I and Karoly, Z and Farkas, Z and Nikolić, Zoran M. and Szepvolgyi, J",
year = "2005",
abstract = "In this work, the results of an optical emission study of fullerene synthesis in an inductively coupled radio frequency thermal plasma reactor are presented. The emission spectroscopy studies, based on the use of the Swan C-2 (0, 1) and CN (0,0) vibrational emission spectra, were carried out to determine the plasma temperature. The evaporation process of graphite powder was observed by scanning electron microscopy.",
journal = "Journal of the Serbian Chemical Society",
title = "Optical diagnostics of fullerene synthesis in the RF thermal plasma process",
volume = "70",
number = "1",
pages = "79-85",
doi = "10.2298/JSC0501079T"
}

Todorović-Marković, B., Marković, Z. M., Mohai, I., Karoly, Z., Farkas, Z., Nikolić, Z. M.,& Szepvolgyi, J.. (2005). Optical diagnostics of fullerene synthesis in the RF thermal plasma process. in Journal of the Serbian Chemical Society, 70(1), 79-85.
https://doi.org/10.2298/JSC0501079T

Todorović-Marković B, Marković ZM, Mohai I, Karoly Z, Farkas Z, Nikolić ZM, Szepvolgyi J. Optical diagnostics of fullerene synthesis in the RF thermal plasma process. in Journal of the Serbian Chemical Society. 2005;70(1):79-85.
doi:10.2298/JSC0501079T .

Todorović-Marković, Biljana, Marković, Zoran M., Mohai, I, Karoly, Z, Farkas, Z, Nikolić, Zoran M., Szepvolgyi, J, "Optical diagnostics of fullerene synthesis in the RF thermal plasma process" in Journal of the Serbian Chemical Society, 70, no. 1 (2005):79-85,
https://doi.org/10.2298/JSC0501079T . .

TY  - JOUR
AU  - Todorović-Marković, Biljana
AU  - Marković, Zoran M.
AU  - Mohai, I
AU  - Karoly, Z
AU  - Gal, L
AU  - Foglein, K
AU  - Szabo, PT
AU  - Szepvolgyi, J
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2669
AB  - Formation of fullerene soot was studied in an inductively coupled, radiofrequency (RF) thermal plasma reactor. A previously developed kinetic model of fullerene formation was applied to determine synthesis conditions leading to high fullerene yield. The experimental results verified the kinetic model. Maximum yield of 4.1% was obtained in particular conditions. It corresponded to a fullerene production rate of 6.4 g h(-1). (C) 2003 Elsevier B.V. All rights reserved.
T2  - Chemical Physics Letters
T1  - Efficient synthesis of fullerenes in RF thermal plasma reactor
VL  - 378
IS  - 3-4
SP  - 434
EP  - 439
DO  - 10.1016/S0009-2614(03)01320-4
ER  - 

@article{
author = "Todorović-Marković, Biljana and Marković, Zoran M. and Mohai, I and Karoly, Z and Gal, L and Foglein, K and Szabo, PT and Szepvolgyi, J",
year = "2003",
abstract = "Formation of fullerene soot was studied in an inductively coupled, radiofrequency (RF) thermal plasma reactor. A previously developed kinetic model of fullerene formation was applied to determine synthesis conditions leading to high fullerene yield. The experimental results verified the kinetic model. Maximum yield of 4.1% was obtained in particular conditions. It corresponded to a fullerene production rate of 6.4 g h(-1). (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Chemical Physics Letters",
title = "Efficient synthesis of fullerenes in RF thermal plasma reactor",
volume = "378",
number = "3-4",
pages = "434-439",
doi = "10.1016/S0009-2614(03)01320-4"
}

Todorović-Marković, B., Marković, Z. M., Mohai, I., Karoly, Z., Gal, L., Foglein, K., Szabo, P.,& Szepvolgyi, J.. (2003). Efficient synthesis of fullerenes in RF thermal plasma reactor. in Chemical Physics Letters, 378(3-4), 434-439.
https://doi.org/10.1016/S0009-2614(03)01320-4

Todorović-Marković B, Marković ZM, Mohai I, Karoly Z, Gal L, Foglein K, Szabo P, Szepvolgyi J. Efficient synthesis of fullerenes in RF thermal plasma reactor. in Chemical Physics Letters. 2003;378(3-4):434-439.
doi:10.1016/S0009-2614(03)01320-4 .

Todorović-Marković, Biljana, Marković, Zoran M., Mohai, I, Karoly, Z, Gal, L, Foglein, K, Szabo, PT, Szepvolgyi, J, "Efficient synthesis of fullerenes in RF thermal plasma reactor" in Chemical Physics Letters, 378, no. 3-4 (2003):434-439,
https://doi.org/10.1016/S0009-2614(03)01320-4 . .