Synthesis of Covalently Modified Energetic Graphene Oxide/CuO Composites with Enhanced Catalytic Performance for Thermal Decomposition of Ammonium Perchlorate

Dayong Li; Yuling Shao; Haibo Ke; Shengquan Chang; Yong Kou; Lei Xiao; Gazi Hao

doi:10.1021/acsomega.3c01865

Synthesis of Covalently Modified Energetic Graphene Oxide/CuO Composites with Enhanced Catalytic Performance for Thermal Decomposition of Ammonium Perchlorate

ACS Omega. 2023 Jun 9;8(25):22876-22886. doi: 10.1021/acsomega.3c01865. eCollection 2023 Jun 27.

Authors

Dayong Li¹, Yuling Shao¹, Haibo Ke², Shengquan Chang³, Yong Kou², Lei Xiao², Gazi Hao²

Affiliations

¹ China North Chemical Research Institute Group Co., Ltd., Beijing 100000, China.
² National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
³ Liaoning Qingyang Special Chemical Co., Ltd., Liaoyang 111000, China.

Abstract

In this study, a new covalently modified energetic graphene oxide (CMGO) was synthesized by introducing the energetic component 4-amino-1,2,4-triazole on GO sheets through valence bond bonding. The morphology and structure of CMGO were studied by scanning electron microscopy, energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffractometry, and X-ray photoelectron spectroscopy, and the results showed that CMGO was successfully synthesized. Then, CMGO/CuO was prepared by loading nano-CuO onto CMGO sheets using an ultrasonic dispersion method. Furthermore, the catalytic effect of CMGO/CuO on the thermal decomposition of ammonium perchlorate (AP) was investigated using differential scanning calorimetric technique and thermogravimetric analysis. The results revealed that the high decomposition temperature T_H and Gibbs free energy ΔG^⧧ of the CMGO/CuO/AP composite decreased by 93.9 °C and 15.3 kJ/mol compared with those of raw AP, respectively. The CMGO/CuO composite exhibited more significant catalytic effect on the thermal decomposition of AP than GO/CuO, and the heat release Q of CMGO/CuO/AP was greatly increased from 132.9 to 1428.5 J/g with 5 wt % CMGO/CuO. The above results demonstrated that CMGO/CuO is an excellent composite energetic combustion catalyst, which is expected to be widely used in composite propellants.