A kinetic investigation on the thermal decomposition of propellants catalyzed by rGO/MFe2O4 (M = Cu, Co, Ni, Zn) nanohybrids

被引：14

作者：

Wang, Weiran ^{[1
]}

Zhang, Dongxiang ^{[1
]}

机构：

[1] Beijing Inst Technol, Coll Chem & Chem Engn, Beijing 100081, Peoples R China

来源：

JOURNAL OF SAUDI CHEMICAL SOCIETY | 2019年 / 23卷 / 05期

基金：

对外科技合作项目（国际科技项目）;

关键词：

rGO/MFe2O4; nanohybrids; Propellants; Thermal decomposition; AMMONIUM-PERCHLORATE; FLOWER-LIKE; NANOPARTICLES; GRAPHENE; FERRITE; REDUCTION; OXIDE;

D O I：

10.1016/j.jscs.2018.11.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reduced graphene oxide/metal ferrite (rGO/MFe2O4, M = Cu, Co, Ni) nanohybrids are successfully prepared through a simple, one-step hydrothermal method. The rGO/MFe2O4 hybrids are characterized by XRD, TEM. The rGO/MFe2O4 nanohybrids demonstrate amazing catalytic activity on thermal decomposition of ammonium perchlorate (AP) based propellants. DSC results indicate that the high-temperature decomposition (HTD) temperature of propellants added with rGO/MFe2O4 nanohybrids (3 wt%), could decrease from 325.9 degrees C to 259.9 degrees C, 268.8 degrees C, 271.9 degrees C, 306.9 degrees C, respectively. The HTD activation energy on a conversion degree (a) range from 0.05 to 0.95 of propellant samples were investigated by two model-free methods Flynne-Walle-O zawa (FWO) and Kissinger-Akahira-Sunose (KAS). The results showed that both methods had similar values of Ea, and they match well with each other. A strong dependence of Ea on alpha revealed a complex decomposition process. The model-fitting analysis suggested the HTD process of propellant samples with or without catalysts both followed Mampel (First order) reaction model. (C) 2018 King Saud University. Production and hosting by Elsevier B.V.

引用

页码：627 / 635

页数：9

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