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The Effects of Metal Complexes of Nano-Graphene Oxide to Thermal Decomposition of FOX-7

Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
Science and Technology on Combustion, Internal Flow and Thermostructure Laboratory, Northwestern Polytechnical University, Xi’an 710072, China
Key Laboratory of Applied Surface and Colloid Chemistry, MOE/School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 144;
Received: 1 December 2019 / Revised: 6 January 2020 / Accepted: 10 January 2020 / Published: 13 January 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
1,1-diamino-2,2-dinitroethene (FOX-7) an insensitive high-energetic compound, has rarely been reported previously with respect to combustion performance. In order to quickly apply it to propellants, the thermal decomposition behaviors of FOX-7 should be optimized. Metal complexes of nano-graphene oxide have an obvious effect on the thermal decomposition of energy materials. In this paper, the metal (Cu2+ and Fe3+) complexes of nano-graphene oxide (nGO) have been synthesized using nGO as a ligand and metal ions as a coordination center. They were mixed with FOX-7 as additives to form energetic composites, and the chemical bond distributions and thermal decomposition processes of these composites have been investigated. The results show that Cu2+ and Fe3+ are uniformly distributed on the surface of the nGO. The thermal decomposition processes of nGO-metal-FOX-7 composites have been fully characterized by Differential scanning calorimeter (DSC) and Thermal gravimetric analyzer-Differential scanning calorimeter-Infrared spectroscopy-Mass spectrum (TG-DSC-IR-MS) coupling technology. The results show that the Fe3+ based complex affect the decomposition of FOX-7 than the Cu2+ based one with the initial decomposition temperature of 230 °C and the apparent heat release of 3535.6 J·g−1. Moreover, the addition of nGO-metal complexes could promote the formation of nitrogen during the decomposition of FOX-7, indicating a more complete decomposition. View Full-Text
Keywords: nano-graphene oxide; energetic materials; thermal decomposition; physical chemistry nano-graphene oxide; energetic materials; thermal decomposition; physical chemistry
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Zhang, C.; Fu, X.; Zhang, X.; Li, J.; Fan, X.; Zhang, G. The Effects of Metal Complexes of Nano-Graphene Oxide to Thermal Decomposition of FOX-7. Nanomaterials 2020, 10, 144.

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