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: | |
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: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |