Catalytic reactivity of graphene oxide stabilized Fe complexe of triaminoguanidine on thermolysis of HNTO/AN co-crystal

• Published in: Thermochimica acta 2022-11, Vol.717, p.179324, Article 179324
• Main Authors: Hanafi, Sabrina, Trache, Djalal, Meziani, Redha, Boukeciat, Hani, Abdelaziz, Amir, Tarchoun, Ahmed Fouzi, Mezroua, Abderrahmane
• Format: Article
• Language: English
• Subjects: Catalytic activity; Co-crystal; Isoconversional integral models; Kinetic parameters; Nanocatalyst
• ISSN: 0040-6031; 1872-762X
• DOI: 10.1016/j.tca.2022.179324

•The catalytic effect of the complex catalyst on the decomposition of energetic co-crystal is obvious.•Thermal decomposition temperature has been decreased under the effect of catalysts.•Both catalysts decreased the activation energy of the co-crystal.•The catalysts affect the decomposition mechanism of the energetic co-crystal.•High energy released with importantly low activation energy has been demonstrated. The catalytic activity of energetic coordination polymers of triaminoguanidine-transition iron, containing graphene oxide (GO-T-Fe-T) or not (T-Fe), on the thermolysis of an energetic co-crystal of hydrazinium 3-nitro-1,2,4-triazol-5-one and ammonium nitrate (HNTO/AN) has been investigated. DSC apparatus has been employed to investigate the thermal behavior of the different products. Four isoconversional integral kinetic approaches have been used to calculate the kinetics triplets. The achieved results showed that both of T-Fe and GO-T-Fe-T possess good catalytic activity. The decomposition temperature and the activation energy of the co-crystal were reduced by 31 kJ/mol and by 55 kJ/mol when T-Fe and GO-T-Fe-T are introduced, respectively. Furthermore, using iron as a metal in the catalysts increased the decomposition heat released from the co-crystal. This can be due to the better dispersion of Fe on the GO sheets, which enhanced the decomposition reaction.