Interaction mechanisms of insensitive explosive FOX-7 and graphene oxides from ab initio calculations

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Abstract

Energetic material–graphene oxide (EM–GO) composites exhibit excellent thermal stability and insensitivity to mechanical stimuli. The interfacial interactions play an important role in affecting the structural and electrical properties of EM–GO composites. FOX-7 crystal with a wave-shaped layer structure is an ideal prototype system for matching with oxygen-rich GO monolayers to form FOX-7–GO composites. Here, we conducted a systematic investigation on FOX-7–GO composites by dispersion-corrected density functional approach. Our results revealed that there exists relatively strong interaction in the FOX-7–GO interface, which stems from the synergistic effect of interfacial charge transfer and hydrogen bonds. The electronic structure analyses demonstrated that GO can hybridize with FOX-7 to reduce charge accumulation on the FOX-7 surface. These theoretical results are useful for clarifying the interfacial effects on the sensitivity of FOX-7–GO composites.

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APA

Su, Y., Sun, Y., & Zhao, J. (2019). Interaction mechanisms of insensitive explosive FOX-7 and graphene oxides from ab initio calculations. Nanomaterials, 9(9). https://doi.org/10.3390/nano9091290

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