Soild-state decomposition mechanisms with conversion extent for ammonium percholorate catalyzed with nanothermite particles

Autor:	Abdelaziz Hamed, Mohamed Gobara, Mohamed Mokhtar, Sherif Elbasuney
Rok vydání:	2022
Předmět:	Physical and Theoretical Chemistry Condensed Matter Physics
Zdroj:	Journal of Thermal Analysis and Calorimetry. 147:13435-13445
ISSN:	1588-2926 1388-6150
Popis:	Colloidal ferric oxide/aluminum nanothermite mixture was incorporated into ammonium percholorate (AP). Nanothermite particles experienced an increase in AP decomposition enthalpy by 120% using DSC. Decomposition kinetic study was performed using integral isoconversional models including Kissinger and KAS models. Nanothermite particles offered decrease in AP activation energy by 55 and 44% using KAS and Kissinger models, respectively. AP nanocomposite is running through three decomposition steps according to extent of conversion: first-order decomposition with Ea = 41.08 kJ.mol−1 (α = 0: 0.25), two-dimensional decomposition with Ea = 71.90 kJ.mol−1 (α = 0.25: 0.6), and one-dimensional diffusion reaction with Ea = 97.10 kJ.mol−1 (α = 0.6:0.9).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::35b7c6308dd8dcb2328592cbbc2e66e9 https://doi.org/10.1007/s10973-022-11523-0 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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