| Al/SiO2复合粒子制备及其催化性能研究 |
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| 引用本文： | 邓国栋,刘宏英,索莹,张志斌. Al/SiO2复合粒子制备及其催化性能研究[J]. 爆破器材, 2009, 38(4): 8-11 |
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| 作者姓名： | 邓国栋 刘宏英 索莹 张志斌 |
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| 作者单位： | 南京理工大学国家特种超细粉体工程技术研究中心,江苏南京,210094;国营245厂,山西太原,030028 |
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| 摘 要： | 文章利用溶胶一凝胶法，以超细铝粉为核，SiO2为膜，制备了包覆式超细Al／SiO2复合粒子。采用扫描电镜、X射线光电子能谱、红外光谱等方法对包膜的效果进行了表征分析。分析结果表明：制备的Al／SiO2复合粒子表面的SiO2膜均匀致密。运用差热分析法（DTA）研究了制备的肼SiO2复合粒子对高氯酸铵（AP）热分解性能的影响。结果表明：与添加5％纯Al粉的AP相比，添加5％Al／SiO2复合粒子的AP，其高温放热峰温降低了29．73℃，表观分解热增加了616．8J／g。表明Al／SiO2复合粒子比纯Al粉对AP热分解具有更好的催化作用。
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| 关 键 词： | 超细铝粉 SiO2膜 Al/SiO2复合粒子 高氯酸铵 |
Study on Preparation and Its Catalysis of Composite Particles Al/SiO2 |
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| DENG Guodong,LIU Hongying,SUO YingNational Special Superfine Powder Engineering Research Centre of Nanjing University of Science, TechnologyZHANG ZhibinNo. Co.Ltd. Study on Preparation and Its Catalysis of Composite Particles Al/SiO2[J]. Explosive Materials, 2009, 38(4): 8-11 |
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| Authors: | DENG Guodong LIU Hongying SUO YingNational Special Superfine Powder Engineering Research Centre of Nanjing University of Science& TechnologyZHANG ZhibinNo. Co.Ltd |
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| Affiliation: | Jiangsu Nanjing;210094;Shanxi Taiyuan;030008 |
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| Abstract: | In this paper,using the ultrafine aluminium powder as the core and SiO2 as the film,composite particles of Al/SiO2 were prepared by means of sol-gel method.The quality of the coating film was characterized by Scanning Electron Microscopy,X-ray Photoelectron Spectroscopy and Infrared Ray Spectroscopy.The results showed that the coating film of the ultrafine composite particles of Al/SiO2 is homogeneous and compact.The effect of Al/SiO2 composite particle on the thermal decomposition of Ammonium Perchlorate(A... |
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| Keywords: | ultrafine aluminium powder SiO2 film Al/SiO2 composite particle ammonium perchlorate （AP） |
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