Thermal Decomposition Properties of MoS2-doped FOX-7 Energetic Composites

被引：0
|
作者：
Xu Z.-L. [1 ]
Yu M.-H. [1 ]
Zhao X. [1 ]
Nie F.-D. [1 ]
机构：
[1] Institute of Chemical Materials, China Academy of Engineering Physics（CAEP）, Mianyang
来源：
Hanneng Cailiao/Chinese Journal of Energetic Materials | 2024年 / 32卷 / 01期
基金：
中国国家自然科学基金;
关键词：
1,1‐diamino‐2, 2‐dinitroethylene（FOX‐7); catalytic decomposition; decomposition kinetics; molybdenum disulfide（MoS[!sub]2[!/sub]）; thermal reactivity properties;
D O I：
10.11943/CJEM2023228
中图分类号：
学科分类号：
摘要：
The achievement of rapid energy release at a low activation energy is vital for the improvement of the thermal decom ‐ position characteristics of 1，1‐diamino‐2，2‐dinitroethylene（FOX‐7）. Herein，MoS2 doped FOX‐7（FOX‐7/MoS2）energetic composites were prepared by the solvent‐antisolvent method. Scanning electron microscopy（SEM），energy dispersive spectrometer （EDS），X‐ray powder diffraction（XRD），X‐ray photoelectron spectroscopy（XPS），thermogravimetric‐differential scanning calorimeter（TG‐DSC）were employed to investigate the morphology，phase composition，thermal decomposition characteristics，and decomposition activation energy of composites. The doped FOX‐7/MoS2 energetic composites displayed improved decomposition temperature at low temperatures and fastened decomposition heat release at high temperatures. Compared with the raw material FOX‐7，the decomposition temperature and activation energy of FOX‐7/MoS2‐5% during the low‐temperature stage increased by 6.8 ℃ and 78.6 kJ·mol-1，respectively. The decomposition temperature and activation energy at the high temperature decreased by 23.4 ℃ and 340.4 kJ·mol-1， respectively. The TG‐MS results showed that the proportion of CO2 in the FOX‐7/MoS2‐5% increased from 7.3% to 16.8% at the high‐temperature stage，indicating a promoted and completed decomposition of FOX‐7 using the MoS2 dopant. © 2024 Institute of Chemical Materials, China Academy of Engineering Physics. All rights reserved.
引用
收藏
页码：31 / 37
页数：6
相关论文
共 17 条
  • [1] Xiao CHEN, Jin CHEN, MAO Xu-hui, Et al., Research progress of FOX‐7［J］, New Technology & New Process, 7, pp. 7-12, (2023)
  • [2] HE Wen-xiang, GUO Zi-chao, CHEN Li-ping, Et al., Synthesis process optimization of FOX‐7 and study on thermal decomposition characteristics of intermediate［J］, Chinese Journal of Ex‑ plosives & Propellants, 46, 9, pp. 788-796, (2023)
  • [3] JIANG Han-yu, WANG Xuan-jun, YU Jin, Et al., Preparation of ultrafine HMX/FOX‐7 composites by microfluidic technology and its performance test［J］, Chinese Journal of Explosives & Propellants, 45, 6, pp. 821-826, (2022)
  • [4] ZHAO X H, CHEN L Z，, WANG J L，, Et al., A spherical FOX‐7 crystal：Preparation，characterization，solubility and thermodynamic study［J］, Journal of Energetic Materials, 41, 1, pp. 63-85, (2023)
  • [5] Unexpected burning rate independence of composite propellants on the pressure by fine interfacial control of fuel/oxidizer［J］, Chemical Engineering Journal, 388, (2020)
  • [6] SHREEVE J M., FOX‐7 based nitrogen rich green energetic salts：Synthesis，characterization，propulsive and detonation performance［J］, Chemical Engineering Jour‑ nal, 452, (2023)
  • [7] CHERNYSHOV D., FOX‐7 high‐energy‐density material：thermal expansion and phase transitions revisited［J］, Acta Crystallographica Section B, 78, 1, pp. 91-95, (2022)
  • [8] LI Jia-hao, GUO Wan-xiao, Et al., Preparation and performance study of CL‐20/FOX‐7/Wax composite particle ［J］, Chinese Journal of Explosives & Propellants, 44, 4, pp. 489-495, (2021)
  • [9] WANG A J., Synthesis of CNTs/CuO and its catalytic performance on the thermal decomposition of ammonium perchlorate［J］, Journal of Saudi Chemical Society, 20, 3, pp. 343-348, (2016)
  • [10] ZHAO F Q, HONG W L，, Et al., Preparation，characterization，and catalytic activity of carbon nanotubes‐supported metal or metal oxide［M］, (2016)
12