Insights into oxidant matching with green gas generator 5-aminotetrazole from aspects of thermal decomposition behavior, kinetics and combustion mechanism

Shu-Na Zhao, Mi Li, Hao Liu, Zhong-Xuan Han, Jiu Chen and Lin Jiang

Renewable Energy, 2024, vol. 224, issue C

Abstract: The green gas generator 5-aminotetrazole (5-AT) is widely applied as an energetic material due to its exceptional characteristics. To investigate the impact of oxidants on the decomposition performance of 5-AT, we prepared three samples using three different oxidants (Sr(NO3)2, KNO3, and KClO4) along with 5-AT under the principle of zero oxygen balance. Then, thermal behavior of the three samples was examined using TG-DTA and TG-FTIR, and their activation energies for each reaction stage were calculated using iso-conversional methods. Results show that the decomposition of these samples occurs in multiple reaction stages and all oxidants, particularly KNO3, facilitate the thermal decomposition of 5-AT. Furthermore, the detailed decomposition mechanism of 5-AT with oxidants was speculated, including that there are two simultaneous ring-opening paths in the first thermal decomposition step of each 5-AT isomer. Eventually, this research can give a meaningful instruction to the formulation design of gas-generation propellant with fewer restrictions in their application.

Keywords: 5-Aminotetrazole; Oxidants; Decomposition mechanism; Kinetics triplets (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:224:y:2024:i:c:s0960148124002210

DOI: 10.1016/j.renene.2024.120156

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