摘要
通过溶胶-凝胶法制备了高氯酸铵/石墨烯气凝胶(AP/GA)纳米复合材料,用SEM、元素分析和XRD对其结构进行了表征,用TG-DSC-IR联用技术对其热分解行为进行了研究。结果表明,AP/GA纳米复合材料中,AP以纳米尺寸存在于石墨烯气凝胶中,AP质量分数高达94.4%,平均粒径约为69.41nm。石墨烯对AP的热分解过程具有明显的催化作用,与AP相比,AP/GA纳米复合材料的低温分解峰消失,高温分解峰温降低了83.7℃。总分解热达2 110J/g。
Ammonium perchlorate / graphene aerogels(AP/GA) nanocomposites were prepared by sol-gel method and characterized by scanning electron microscope(SEM),elemental analysis and X-ray diffraction(XRD).Their thermal decomposition behaviours were investigated by TG-DSC-IR.The results indicate that AP is presented in the AP/GA nanocomposites with an average particle size of 69.41 nm and occupied 94.4% of total mass.GA shows an obvious catalytic effect on the thermal decomposition of AP/GA.Compared to pure AP,the low temperature decomposition peak of AP/GA nanocomposites disappears,the high temperature decomposition peak temperature decreases by 83.7℃,and the total heat release reaches 2 110 J/g.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2012年第6期76-80,共5页
Chinese Journal of Explosives & Propellants
基金
北京理工大学基础研究基金资助(22050205)
关键词
物理化学
高氯酸铵
石墨烯气凝胶
热分解性能
纳米复合材料
physical chemistry
ammonium perchlorate
graphene aerogel
thermal decomposition properties
nanocomposite
