Thermal behavior of Al/MoO3 xerogel nanocomposites

被引：29
|
作者：
Seo, Han-Su [1 ]
Kim, Jae-Kyeong [1 ]
Kim, Jun-Woo [1 ]
Kim, Hyoun-Soo [2 ]
Koo, Kee-Kahb [1 ]
机构：
[1] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea
[2] Agcy Def Dev, Taejon 305600, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 01期
关键词：
Thermite; Sol-gel; Nanocomposite; SOL-GEL SYNTHESIS; NANOENERGETIC MATERIALS; MOLYBDENUM; COMBUSTION;
D O I：
10.1016/j.jiec.2013.04.008
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Sol-gel process using molybdenum alkoxides was employed to prepare Al/MoO3 xerogel nanocomposites as a thermite with better performance by improvement of interfacial contact area between the oxidizer and fuel. Micromorphology and thermite reaction characteristics of Al/MoO3 xerogel nanocomposites were analyzed by scanning electron microscopy (SEM) and thermogravimetry/ differential scanning calorimetry (TG/DSC), respectively. In the present Al/MoO3 xerogel system, it was found that exothermic enthalpy increases as the Al/Mo mole ratio increases and then decreases when Al/ Mo mole ratio is larger than 6 indicating that optimum mole ratio of Al/Mo is 6 with reaction enthalpy of 420.58 J/g. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：189 / 193
页数：5
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