Investigation of the catalytic effect of cobalt(III) bis(tetrazole)methane complex on the thermal decomposition of ammonium perchlorate

eghdamtalab, mohammad; Hosseini, S.ghorban; ghanbari, shahram; tavangar, saeed; Moeini, keyvan

Volume 20, Issue 1 (3-2025) مواد پرانرژی 2025, 20(1): 23-15 | Back to browse issues page

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eghdamtalab M, Hosseini S, ghanbari S, tavangar S, Moeini K. Investigation of the catalytic effect of cobalt(III) bis(tetrazole)methane complex on the thermal decomposition of ammonium perchlorate. مواد پرانرژی 2025; 20 (1) : 02
URL: http://isaem.ir/article-1-1546-en.html

Investigation of the catalytic effect of cobalt(III) bis(tetrazole)methane complex on the thermal decomposition of ammonium perchlorate

Mohammad Eghdamtalab ^*

, vavchem@gmail.com

Abstract: (30 Views)

Ammonium perchlorate (AP), a conventional solid oxidizer in energetic compositions, undergoes multi-stage thermal decomposition across a wide temperature range, making it an ideal benchmark for evaluating solid-phase catalysts. In recent years, traditional metal oxide catalysts have been increasingly replaced by novel energetic catalysts. These next-generation catalysts, designed as metal-organic complexes incorporating energetic ligands and transition metals, offer the dual advantage of serving as both fuel and catalyst in energetic formulations. In this study, the energetic catalyst tris(aminoguanidinium) tris(5,5′-methylenebis(tetrazolato))cobalt(III) was synthesized, characterized, and subsequently evaluated. A composite consisting of 75% ammonium perchlorate (AP) and 25% catalyst was analyzed using thermogravimetric analysis and differential scanning calorimetry (TG-DSC). The results for the catalyzed AP showed a reduction in decomposition temperature from 415°C to 320°C, a decrease in activation energy from 223.5 kJ·mol⁻¹ to 189.8 kJ·mol⁻¹, and an increase in decomposition enthalpy from 888 J·g⁻¹ to 3077 J·g⁻¹. These improvements are attributed to the effective catalytic activity of the complex.

Article number: 02

Keywords: Catalytic activity, cobalt(III) complex, bis(tetrazole)methane, Ammonium perchlorate, Kinetic parameters.

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Type of Study: Research | Subject: پیشرانه
Published: 2025/12/1