Synthesis of Nitrified Graphene Oxide and Its Catalytic Activity for Ammonium Perchlorate Decomposition

被引：0

作者：

Guan F. ^{[1
]}

Yu L. ^{[2
]}

Ren H. ^{[1
]}

Jiao Q. ^{[1
]}

Liu J. ^{[1
]}

机构：

[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

[2] Hong Kong New ARK Technologise LTD, Hong Kong

来源：

Binggong Xuebao/Acta Armamentarii | 2020年 / 41卷 / 07期

关键词：

Ammonium perchlorate; Catalysis; Characterization; Nitrified graphene oxide; Thermal decomposition;

D O I：

10.3969/j.issn.1000-1093.2020.07.009

中图分类号：

学科分类号：

摘要：

In order to improve the energy release and catalytic effects of graphene in energetic materials, a nitrified graphene oxide (NGO) was obtained by nitrifying a graphite oxide prepared by Hummers method. The prepared samples were analyzed by scanning electron microscopy, X-ray photoelectron spectroscopy, organic element analyzer, Fourier transform infrared spectroscopy and TG-DSC synchronous thermal analysis for strctural and performance analysis. Constant volume combustion test was used to probe the burning behavior of NGO in energetic system. The experimental results show that the prepared NGO is lamellar with wrinkles as a novel energetic catalyst. The nitrate group and the nitro group are suspended at the oxygen-containing functional group sites of graphene oxide, and the mass ratio of nitrate element is 8%. Exothermic enthalpy of NGO is around 659 J/g, and the thermal total weight loss is 47%. When 5% NGO is added into ammonium perchlorate (AP), the peak temperature in each decomposition step is lower, and the activation energy of AP in the first decomposition step decreases from 123.7 kJ/mol to 99.4 kJ/mol. Meanwhile the critical thermal explosion temperature decreases from 431℃ to 366℃. NGO is added to increase the reaction heat of AP-coated Al system and the peak pressure by 13% and 56%, respectively. © 2020, Editorial Board of Acta Armamentarii. All right reserved.

引用

页码：1323 / 1329

页数：6

共 31 条

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