纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响

引用本文: 安亭, 曹慧群, 赵凤起, 任晓宁, 田德余, 徐司雨, 高红旭, 谭艺, 肖立柏. 纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响[J]. 物理化学学报, doi: 10.3866/PKU.WHXB201206292 shu

Citation: AN Ting, CAO Hui-Qun, ZHAO Feng-Qi, REN Xiao-Ning, TIAN De-Yu, XU Si-Yu, GAO Hong-Xu, TAN Yi, XIAO Li-Bai. Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine[J]. Acta Physico-Chimica Sinica, doi: 10.3866/PKU.WHXB201206292 shu

纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响

安亭 ^1, ,
曹慧群 ^2, ,
赵凤起 ^1, ,
任晓宁 ^1, ,
田德余 ^2, ,
徐司雨 ^1, ,
高红旭 ^1, ,
谭艺 ^1, ,
肖立柏 ^1,

基金项目:
国家自然科学基金(21173163) (21173163)

燃烧与爆炸技术重点实验室基金(9140C3501041001)资助项目 (9140C3501041001)

摘要:

采用银镜法和水热法制备了两种纳米Ag/CNTs(碳纳米管)复合材料, 利用傅里叶变换红外(FTIR)光谱、粉末X射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜及能量散射光谱仪(SEM-EDS)对复合物的物相、组成、形貌和结构进行分析表征, 并运用差示扫描量热法(DSC)研究了纳米Ag/CNTs 复合材料对环三亚甲基三硝胺(RDX)热分解特性的影响. 结果表明: 纳米Ag 以10-80 nm的不规则球形“粘附”于纳米CNTs 表面,分散较均匀, 水热法制得的复合物表面纳米Ag较大、且负载的Ag粒子较多; 纳米Ag/CNTs 复合材料的加入改变了RDX的热分解过程, 使原有占主导的液相分解变为二次的气相反应加剧, RDX主分解峰形发生了明显的改变; 纳米Ag/CNTs 复合材料对RDX热分解的催化主要表现为分解温度的降低.

关键词:

English

Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine

1.
1. Science and Technology on Combustion and Explosion Laboratory, Xi?an Modern Chemistry Research Institute, Xi?an 710065, P. R. China;
2. Shenzhen Key Laboratory of New Lithium-ion Battery and Mesoporous Materials, College of Chemistry and Chemical Engineering, Shenzhen 518060, Guangdong Province, P. R. China
Received Date: 09 March 2012
Available Online: 02 August 2012
Fund Project:
国家自然科学基金(21173163)

燃烧与爆炸技术重点实验室基金(9140C3501041001)资助项目

Abstract:

Two kinds of Ag/CNTs (carbon nanotubes) nanocomposite materials were successfully prepared by silver mirror reaction and hydrothermal methods. Their physical phase, composition, morphology, and structure were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscope-energy dispersive spectrometry (SEM-EDS). Catalytic effects of the Ag/CNTs nanocomposite on the thermal decomposition of cyclotrimethylene trinitramine (RDX) were investigated by differential scanning calorimetry (DSC). Our results indicated that the irregularly globose nano-Ag particles attached to the surface of the nano CNTs evenly. The nanocomposite product prepared hydrothermally had the highest loading of nano-Ag particles and largest Ag particle size. Both Ag/CNTs nanocomposites influenced the thermal decomposition of RDX, changing the primary decomposition of the liquid phase to a secondary gas phase reaction and resulting in obvious change in the shape of the main decomposition peak. The catalytic effect of Ag/CNTs nanocomposite on the thermal decomposition of RDX was mainly exhibited at lower decomposition temperature.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响

English

Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响

English

Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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