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Isoconversional kinetic analysis of complex solid-state processes / Junmeng Cai in Industrial & engineering chemistry research, Vol. 51 N° 49 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 16157-16161 Titre : Isoconversional kinetic analysis of complex solid-state processes : Parallel and successive reactions Type de document : texte imprimé Auteurs : Junmeng Cai, Auteur ; Weixuan Wu, Auteur ; Ronghou Liu, Auteur Année de publication : 2013 Article en page(s) : pp. 16157-16161 Note générale : Industrial chemistry Langues : Anglais (eng) Résumé : A critical study of the use of the iterative linear integral isoconversional method for a parallel reactions process and a successive reactions process has been performed using theoretical simulated nonisothermal data. The activation energies obtained for these complex processes show a strong dependence on the range of heating rates, which is against the assumptions of isoconversional methods. Therefore, a systematic kinetic analysis for discriminating the reactions rather than merely assuming that the activation energy varies with the conversion would be required for understanding the reaction mechanism of these processes. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732141 [article] Isoconversional kinetic analysis of complex solid-state processes : Parallel and successive reactions [texte imprimé] / Junmeng Cai, Auteur ; Weixuan Wu, Auteur ; Ronghou Liu, Auteur . - 2013 . - pp. 16157-16161. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 16157-16161 Résumé : A critical study of the use of the iterative linear integral isoconversional method for a parallel reactions process and a successive reactions process has been performed using theoretical simulated nonisothermal data. The activation energies obtained for these complex processes show a strong dependence on the range of heating rates, which is against the assumptions of isoconversional methods. Therefore, a systematic kinetic analysis for discriminating the reactions rather than merely assuming that the activation energy varies with the conversion would be required for understanding the reaction mechanism of these processes. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732141