Documents disponibles écrits par cet auteur

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

Kinetic analysis of solid-state reactions / Junmeng Cai in Industrial & engineering chemistry research, Vol. 48 N° 6 (Mars 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 6 (Mars 2009) . - pp. 3249–3253 Titre : Kinetic analysis of solid-state reactions : a general empirical kinetic model Type de document : texte imprimé Auteurs : Junmeng Cai, Auteur ; Ronghou Liu, Auteur Année de publication : 2009 Article en page(s) : pp. 3249–3253 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Empirical  kinetic  model  Heterogeneities  Solid-state-reactions Résumé : In this research note, we presented a general empirical kinetic model that can fit any ideal kinetic model and even deviations produced by heterogeneities in particle shapes. The algebraic expression of the general empirical kinetic model is f(α) = αm(1 − qα)n. The kinetic model can be used for performing the kinetic analysis of experimental data without previous assumptions about the form of the reaction kinetic model. The empirical kinetic model has been evaluated from the theoretical and experimental data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8018615 [article] Kinetic analysis of solid-state reactions : a general empirical kinetic model [texte imprimé] / Junmeng Cai, Auteur ; Ronghou Liu, Auteur . - 2009 . - pp. 3249–3253. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 6 (Mars 2009) . - pp. 3249–3253 Mots-clés : Empirical  kinetic  model  Heterogeneities  Solid-state-reactions Résumé : In this research note, we presented a general empirical kinetic model that can fit any ideal kinetic model and even deviations produced by heterogeneities in particle shapes. The algebraic expression of the general empirical kinetic model is f(α) = αm(1 − qα)n. The kinetic model can be used for performing the kinetic analysis of experimental data without previous assumptions about the form of the reaction kinetic model. The empirical kinetic model has been evaluated from the theoretical and experimental data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8018615