The processes of decomposition of C60 in different atmospheres were investigated by TG and DTG methods. It was observed that the temperature maxima on the DTG curves are shifted towards higher temperatures by about 200 K in an inert nitrogen atmosphere compared to the values in air. Kinetic parameters were calculated by methods evaluated for processes under nonisothermal conditions. In air, where oxidation takes place, the values of the activation energy depending on the method used, are: Ea =145+6 kJ/mol (Freeman-Carroll), Ea= 138+16 kJ/mol (Ozawa), Ea = 121+14 kJ/mol (Kissinger). In nitrogen, where sublimation occurs, the values of the activation energy are: Ea = 130+8 kJ/mol (Freeman-Carroll). Ea=157+16 kJ/mol (Ozawa), Ea = 141+14 kJ/mol (Kissinger).
Keywords:
kinetics / decomposition / C60 / fullerenes
Source:
Journal of the Serbian Chemical Society, 1997, 62, 7, 615-618
TY - JOUR
AU - Simić, Slaviša M.
AU - Devečerski, Aleksandar
PY - 1997
UR - http://vinar.vin.bg.ac.rs/handle/123456789/7759
AB - The processes of decomposition of C60 in different atmospheres were investigated by TG and DTG methods. It was observed that the temperature maxima on the DTG curves are shifted towards higher temperatures by about 200 K in an inert nitrogen atmosphere compared to the values in air. Kinetic parameters were calculated by methods evaluated for processes under nonisothermal conditions. In air, where oxidation takes place, the values of the activation energy depending on the method used, are: Ea =145+6 kJ/mol (Freeman-Carroll), Ea= 138+16 kJ/mol (Ozawa), Ea = 121+14 kJ/mol (Kissinger). In nitrogen, where sublimation occurs, the values of the activation energy are: Ea = 130+8 kJ/mol (Freeman-Carroll). Ea=157+16 kJ/mol (Ozawa), Ea = 141+14 kJ/mol (Kissinger).
T2 - Journal of the Serbian Chemical Society
T1 - Thermochemical behavior of C60. Kinetics of decomposition in different atmospheres
T1 - Термохемијско понашање угљеника C60. Кинетика разлагања у различитим атмосферама
VL - 62
IS - 7
SP - 615
EP - 618
ER -
@article{
author = "Simić, Slaviša M. and Devečerski, Aleksandar",
year = "1997",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7759",
abstract = "The processes of decomposition of C60 in different atmospheres were investigated by TG and DTG methods. It was observed that the temperature maxima on the DTG curves are shifted towards higher temperatures by about 200 K in an inert nitrogen atmosphere compared to the values in air. Kinetic parameters were calculated by methods evaluated for processes under nonisothermal conditions. In air, where oxidation takes place, the values of the activation energy depending on the method used, are: Ea =145+6 kJ/mol (Freeman-Carroll), Ea= 138+16 kJ/mol (Ozawa), Ea = 121+14 kJ/mol (Kissinger). In nitrogen, where sublimation occurs, the values of the activation energy are: Ea = 130+8 kJ/mol (Freeman-Carroll). Ea=157+16 kJ/mol (Ozawa), Ea = 141+14 kJ/mol (Kissinger).",
journal = "Journal of the Serbian Chemical Society",
title = "Thermochemical behavior of C60. Kinetics of decomposition in different atmospheres, Термохемијско понашање угљеника C60. Кинетика разлагања у различитим атмосферама",
volume = "62",
number = "7",
pages = "615-618"
}
Simić SM, Devečerski A. Термохемијско понашање угљеника C60. Кинетика разлагања у различитим атмосферама. Journal of the Serbian Chemical Society. 1997;62(7):615-618
Simić, S. M.,& Devečerski, A. (1997). Термохемијско понашање угљеника C60. Кинетика разлагања у различитим атмосферама.
Journal of the Serbian Chemical Society, 62(7), 615-618.
Simić Slaviša M., Devečerski Aleksandar, "Термохемијско понашање угљеника C60. Кинетика разлагања у различитим атмосферама" 62, no. 7 (1997):615-618
