Synthesis, characterization, pyrolysis and thermokinetic studies of an energetic ionic liquid: 4-amino-1-methyl-1,2,4-triazolium nitrate
Year: 2025
Type: article
Abstract: Energetic ionic liquids (EILs) are continuously being explored in the field of energetic materials and are attractive candidates for use in explosives and propellants. A promising energetic ionic liquid viz., 4-amino-1-methyl-1,2,4-triazolium nitrate (AMTN) was synthesized and characterized by FT-IR, elemental, TG, LC-MS and ESI-MS analyses. The thermal decomposition of AMTN was studied by non-isothermal thermogravimetric analysis (TGA) under variable heating rates from 5 to 20oC/min. The TG data of AMTN showed a single stage decomposition in the temperature range of 180oC-260°C. Pyrolysis GC-MS studies were undertaken at 300°C and the major decomposition fragments were identified as nitrous oxide (N2O), aziridine 1-amine, 1,2,3-triazine and 1-methyl-1,2,4-triazole and a mechanism was evolved. The activation energy (Ea) for the thermal decomposition of AMTN was evaluated using Kissinger method and is found to be 126.6 ± 14.1 kJ/mol. Kinetic analyses using isoconversional method of Vyazovkin, showed a strong dependence of Ea on fractional conversion (α).
Source: Journal of Ionic Liquids
Authors: Santhosh G, Supriya N, Vijayalakshmi K. P, Deepthi Thomas
Institution: Vikram Sarabhai Space Centre
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,490
OpenAlex ID: W4411081107