A modified Ortega method to evaluate the activation energies of solid state reactions

Autor:	Tianxiang Li, Kozo Saito, Yunqing Han
Rok vydání:	2012
Předmět:	Extent of reaction Chemistry Kinetic analysis Solid-state Thermodynamics Activation energy Physical and Theoretical Chemistry Condensed Matter Physics Kinetic energy Noise (electronics)
Zdroj:	Journal of Thermal Analysis and Calorimetry. 112:683-687
ISSN:	1572-8943 1388-6150
Popis:	The application of the average linear integral isoconversional method developed by Ortega for evaluating the activation energies of solid state reactions may be hindered by experimental noise and the uncertainties associated with selecting appropriate reaction segments. This paper suggests a procedure, called the modified Ortega method, which can avoid or minimize these hindrances. By applying the modified Ortega method to the kinetic analyses of both simulated and experimental data, a more consistent dependence of the activation energy on the extent of reaction conversion was found with those calculated from the modified Vyazovkin method and the Friedman method.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1f140908a8d792abbf974294f0b122c4 https://doi.org/10.1007/s10973-012-2591-0 Zobrazit plný text záznamu Full text from SpringerLink