A study of the kinetics of isothermal nicotine desorption from silicon dioxide
Abstract
The isothermal kinetics of nicotine desorption from silicon dioxide (SiO(2)) was investigated. The isothermal thermogravimetric curves of nicotine at temperatures of 115 degrees C, 130 degrees C and 152 degrees C were recorded. The kinetic parameters (E(a), lnA) of desorption of nicotine were calculated using various methods (stationary point, model constants and differential isoconversion method). By applying the model-fitting method, it was found that the kinetic model of nicotine desorption from silicon dioxide was a phase boundary controlled reaction (contracting volume). The values of the kinetic parameters, E(a,alpha) and lnA(alpha), complexly change with changing degree of desorption and a compensation effect exists. A new mechanism of activation for the desorption of the absorbed molecules of nicotine was suggested in agreement with model of selective energy transfer. (C) 2010 Elsevier B.V. All rights reserved.
Keywords:
Nicotine / Desorption / Kinetics / Silicon dioxideSource:
Applied Surface Science, 2010, 257, 5, 1425-1430Funding / projects:
- Fizička hemija dinamičkih stanja i struktura neravnotežnih sistema - od monotone do oscilatorne evolucije i haosa (RS-MESTD-MPN2006-2010-142025)
DOI: 10.1016/j.apsusc.2010.08.055
ISSN: 0169-4332
WoS: 000283349200010
Scopus: 2-s2.0-78049293736
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Institution/Community
VinčaTY - JOUR AU - Adnađević, Borivoj AU - Lazarević, Nataša AU - Jovanović, Jelena PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4109 AB - The isothermal kinetics of nicotine desorption from silicon dioxide (SiO(2)) was investigated. The isothermal thermogravimetric curves of nicotine at temperatures of 115 degrees C, 130 degrees C and 152 degrees C were recorded. The kinetic parameters (E(a), lnA) of desorption of nicotine were calculated using various methods (stationary point, model constants and differential isoconversion method). By applying the model-fitting method, it was found that the kinetic model of nicotine desorption from silicon dioxide was a phase boundary controlled reaction (contracting volume). The values of the kinetic parameters, E(a,alpha) and lnA(alpha), complexly change with changing degree of desorption and a compensation effect exists. A new mechanism of activation for the desorption of the absorbed molecules of nicotine was suggested in agreement with model of selective energy transfer. (C) 2010 Elsevier B.V. All rights reserved. T2 - Applied Surface Science T1 - A study of the kinetics of isothermal nicotine desorption from silicon dioxide VL - 257 IS - 5 SP - 1425 EP - 1430 DO - 10.1016/j.apsusc.2010.08.055 ER -
@article{ author = "Adnađević, Borivoj and Lazarević, Nataša and Jovanović, Jelena", year = "2010", abstract = "The isothermal kinetics of nicotine desorption from silicon dioxide (SiO(2)) was investigated. The isothermal thermogravimetric curves of nicotine at temperatures of 115 degrees C, 130 degrees C and 152 degrees C were recorded. The kinetic parameters (E(a), lnA) of desorption of nicotine were calculated using various methods (stationary point, model constants and differential isoconversion method). By applying the model-fitting method, it was found that the kinetic model of nicotine desorption from silicon dioxide was a phase boundary controlled reaction (contracting volume). The values of the kinetic parameters, E(a,alpha) and lnA(alpha), complexly change with changing degree of desorption and a compensation effect exists. A new mechanism of activation for the desorption of the absorbed molecules of nicotine was suggested in agreement with model of selective energy transfer. (C) 2010 Elsevier B.V. All rights reserved.", journal = "Applied Surface Science", title = "A study of the kinetics of isothermal nicotine desorption from silicon dioxide", volume = "257", number = "5", pages = "1425-1430", doi = "10.1016/j.apsusc.2010.08.055" }
Adnađević, B., Lazarević, N.,& Jovanović, J.. (2010). A study of the kinetics of isothermal nicotine desorption from silicon dioxide. in Applied Surface Science, 257(5), 1425-1430. https://doi.org/10.1016/j.apsusc.2010.08.055
Adnađević B, Lazarević N, Jovanović J. A study of the kinetics of isothermal nicotine desorption from silicon dioxide. in Applied Surface Science. 2010;257(5):1425-1430. doi:10.1016/j.apsusc.2010.08.055 .
Adnađević, Borivoj, Lazarević, Nataša, Jovanović, Jelena, "A study of the kinetics of isothermal nicotine desorption from silicon dioxide" in Applied Surface Science, 257, no. 5 (2010):1425-1430, https://doi.org/10.1016/j.apsusc.2010.08.055 . .