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

1
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
2
Science and Technology on Combustion, Internal Flow and Thermostructure Laboratory, Northwestern Polytechnical University, Xi’an 710072, China
3
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; https://doi.org/10.3390/nano10010144
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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