Thermal degradation of cetyltrimethylarnmonium bromide (CTMAB) inside the mesoporous SBA-3 has been studied under non-isothermal conditions. There are two distinct although partly overlapping kinetic processes, and both of them can be described by the Sestak-Berggren model. The main decomposition step proceeds with Ea = 116±2 kJ/mol which is significantly lower than for the mesoporous MCM-41 and MCM-48 suggesting that the interaction between CTMAB and the silica network plays a crucial role in the removal of the surfactant from the as-synthesized material. The second decomposition step has a higher Ea value (Ea = 153±5 kJ/mol) than the first step, indicating that it is primarily controlled by the size of the pore openings.
TY - JOUR
AU - Rajić, Nevenka
AU - Stojaković, D.
AU - Mrak, Maja
AU - Kaučič, Venčeslav
PY - 2008
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1208
AB - Thermal degradation of cetyltrimethylarnmonium bromide (CTMAB) inside the mesoporous SBA-3 has been studied under non-isothermal conditions. There are two distinct although partly overlapping kinetic processes, and both of them can be described by the Sestak-Berggren model. The main decomposition step proceeds with Ea = 116±2 kJ/mol which is significantly lower than for the mesoporous MCM-41 and MCM-48 suggesting that the interaction between CTMAB and the silica network plays a crucial role in the removal of the surfactant from the as-synthesized material. The second decomposition step has a higher Ea value (Ea = 153±5 kJ/mol) than the first step, indicating that it is primarily controlled by the size of the pore openings.
PB - Elsevier Science Bv, Amsterdam
T2 - Studies in Surface Science and Catalysis
T1 - A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve
EP - 980
IS - B
SP - 977
VL - 174
DO - 10.1016/S0167-2991(08)80053-5
ER -
@article{
author = "Rajić, Nevenka and Stojaković, D. and Mrak, Maja and Kaučič, Venčeslav",
year = "2008",
abstract = "Thermal degradation of cetyltrimethylarnmonium bromide (CTMAB) inside the mesoporous SBA-3 has been studied under non-isothermal conditions. There are two distinct although partly overlapping kinetic processes, and both of them can be described by the Sestak-Berggren model. The main decomposition step proceeds with Ea = 116±2 kJ/mol which is significantly lower than for the mesoporous MCM-41 and MCM-48 suggesting that the interaction between CTMAB and the silica network plays a crucial role in the removal of the surfactant from the as-synthesized material. The second decomposition step has a higher Ea value (Ea = 153±5 kJ/mol) than the first step, indicating that it is primarily controlled by the size of the pore openings.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Studies in Surface Science and Catalysis",
title = "A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve",
pages = "980-977",
number = "B",
volume = "174",
doi = "10.1016/S0167-2991(08)80053-5"
}
Rajić, N., Stojaković, D., Mrak, M.,& Kaučič, V.. (2008). A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve. in Studies in Surface Science and Catalysis
Elsevier Science Bv, Amsterdam., 174(B), 977-980.
https://doi.org/10.1016/S0167-2991(08)80053-5
Rajić N, Stojaković D, Mrak M, Kaučič V. A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve. in Studies in Surface Science and Catalysis. 2008;174(B):977-980.
doi:10.1016/S0167-2991(08)80053-5 .
Rajić, Nevenka, Stojaković, D., Mrak, Maja, Kaučič, Venčeslav, "A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve" in Studies in Surface Science and Catalysis, 174, no. B (2008):977-980,
https://doi.org/10.1016/S0167-2991(08)80053-5 . .
