Ammonium perchlorate encapsulating nanothermites as high energetic composites: Preparation, thermal decomposition and combustion properties

被引：44

作者：

Hu, Yinghui ^{[1
]}

Yang, Yulin ^{[1
]}

Lin, Kaifeng ^{[1
]}

Hao, Dongyu ^{[1
]}

Qiu, Lele ^{[1
]}

Wang, Dakang ^{[1
]}

Fan, Ruiqing ^{[1
]}

Xia, Debin ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China

来源：

CHEMICAL ENGINEERING SCIENCE | 2019年 / 207卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Encapsulated; Nanothermites/AP; Energetic composites; EISA; Combustion; CATALYTIC-ACTIVITY; CUO; PERFORMANCE; PARTICLES; NANOCOMPOSITES; MICROSPHERES; FABRICATION; MECHANISM;

D O I：

10.1016/j.ces.2019.06.041

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, various nanothermites, such as nCuO/nano Al (nAl), nMoO(3)/nAl, nBi(2)O(3)/nAl, nFe(2)O(3) /nAl, nNiO/nAl and nMgO/nAl, were encapsulated into ammonium perchlorate (AP) by the evaporation induced self-assembly (EISA) method. The obtained composites showed superior properties in decreasing the decomposition temperature of AP, increasing heat of release and ignition and combustion properties than the corresponding physically-mixed ones. The mechanism for such high-quality composites prepared by EISA was due to not only more intimate interaction between AP and nanothermites but also less agglomeration of nanothermites. nAl/nCuO/AP showed the lowest decomposition temperature of AP, highest heat of release and best ignition and combustion properties among all the obtained composites by EISA. This was because of effective conversion of NH3 to N2O with less NO production, as proved by the real-time FT-IR. This work demonstrated that EISA was an effective approach with high compatibility for obtaining various AP-nanothermites-based energetic materials. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：334 / 343

页数：10

共 44 条

[1] Synthesis of CuO nanopowders by high-energy ball-milling method and investigation of their catalytic activity on thermal decomposition of ammonium perchlorate particles [J].