Kinetic analysis of illite dehydroxylation from differential scanning calorimetry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00338075" target="_blank" >RIV/68407700:21110/19:00338075 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/1.5114059" target="_blank" >https://doi.org/10.1063/1.5114059</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5114059" target="_blank" >10.1063/1.5114059</a>

Result language
angličtina
Original language name
Kinetic analysis of illite dehydroxylation from differential scanning calorimetry
Original language description
The two-step dehydroxylation of illite is studied using the differential scanning calorimetry on powder samples with heating rates from 1 to 10 °C min-1 in a dynamic argon atmosphere. The values of apparent activation energy and pre-exponential factor are calculated using the Kissinger method. The determined values of apparent activation energy and pre-exponential factor for the trans-vacant layer dehydroxylation are (227 ± 6) kJ mol-1 and (2.87 ± 0.09)x1013 min-1, respectively. The results also show that this process can be characterized by a 1D diffusion-controlled reaction with instantaneous nucleation rate. For the cis-vacant layer dehydroxylation, the values of apparent activation energy and pre-exponential factor are (242 ± 10) kJ mol-1 and (5.37 ± 0.23)x1012 min-1, respectively. The value of the Avrami peak factor for this step indicates diffusion-controlled growth of the new phase with zero or decreasing nucleation rate.
Czech name
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Czech description
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Project
<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
AIP Conference Proceedings, International Conference on Numerical Analysis and Applied Mathematics 2018, ICNAAM 2018
ISBN
978-0-7354-1854-7
ISSN
0094-243X
e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
American Institute of Physics Inc.
Place of publication
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Event location
Rhodes
Event date
Sep 13, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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