Complex process activation energy evaluated by combined utilization of differential and integral isoconversional methods
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39916408" target="_blank" >RIV/00216275:25310/20:39916408 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0022309320301204?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022309320301204?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2020.120003" target="_blank" >10.1016/j.jnoncrysol.2020.120003</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Complex process activation energy evaluated by combined utilization of differential and integral isoconversional methods
Popis výsledku v původním jazyce
Performance of the differential and integral isoconversional methods of kinetic analysis was evaluated for complex processes with overlapping independent or consequent reaction mechanisms. Novel way of combined interpretation of the activation energy dependences provided by both differential and integral methods was developed, enabling precise determination of the true activation energies of the overlapping sub-processes. Fundamental part of this evaluation method is based on the existence of point of inflexion following the overshoot effect on the differential isoconversional dependence of activation energy on the degree of conversion. This point of inflexion was found to very well coincide with the higher activation energy. The lower true activation energy can be always determined from the integral isoconversional dependence. Universal pattern for interpretation of the isoconversional kinetic methods behavior was confirmed for all sub-processes with asymmetry in the range of <-0.35; 0.35>, covering majority of real-life data.
Název v anglickém jazyce
Complex process activation energy evaluated by combined utilization of differential and integral isoconversional methods
Popis výsledku anglicky
Performance of the differential and integral isoconversional methods of kinetic analysis was evaluated for complex processes with overlapping independent or consequent reaction mechanisms. Novel way of combined interpretation of the activation energy dependences provided by both differential and integral methods was developed, enabling precise determination of the true activation energies of the overlapping sub-processes. Fundamental part of this evaluation method is based on the existence of point of inflexion following the overshoot effect on the differential isoconversional dependence of activation energy on the degree of conversion. This point of inflexion was found to very well coincide with the higher activation energy. The lower true activation energy can be always determined from the integral isoconversional dependence. Universal pattern for interpretation of the isoconversional kinetic methods behavior was confirmed for all sub-processes with asymmetry in the range of <-0.35; 0.35>, covering majority of real-life data.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA17-11753S" target="_blank" >GA17-11753S: Kinetická analýza komplexních fyzikálně chemických procesů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Non-Crystalline Solids
ISSN
0022-3093
e-ISSN
—
Svazek periodika
535
Číslo periodika v rámci svazku
May
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
14
Strana od-do
"120003-1"-"120003-14"
Kód UT WoS článku
000527027400018
EID výsledku v databázi Scopus
2-s2.0-85080056175