物理化学学报 >> 2013, Vol. 29 >> Issue (04): 777-784.doi: 10.3866/PKU.WHXB20130111

催化和表面科学 上一篇    下一篇

没食子酸铋锆的制备、表征及其燃烧催化作用

赵凤起, 张衡, 安亭, 张晓宏, 仪建华, 徐司雨, 汪营磊   

  1. 西安近代化学研究所燃烧与爆炸技术重点实验室, 西安 710065
  • 收稿日期:2012-10-24 修回日期:2013-01-09 发布日期:2013-03-25
  • 通讯作者: 赵凤起 E-mail:npecc@163.com
  • 基金资助:

    国家自然科学基金(21173163)和燃烧与爆炸技术重点实验室基金(9140C350307110C3506)资助项目

Preparation, Characterization and Combustion Catalytic Action of Bismuth/Zirconium Gallate

ZHAO Feng-Qi, ZHANG Heng, AN Ting, ZHANG Xiao-Hong, YI Jian-Hua, XU Si-Yu, WANG Ying-Lei   

  1. Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P. R. China
  • Received:2012-10-24 Revised:2013-01-09 Published:2013-03-25
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21173163) and Foundation of Science and Technology on Combustion and Explosion Laboratory, China (9140C350307110C3506).

摘要:

以没食子酸、硝酸铋和硝酸氧锆为原料, 首次合成出了双金属有机盐——没食子酸铋锆, 采用有机元素分析、X射线荧光(XRF)光谱和傅里叶变换红外(FTIR)光谱对其进行了表征. 在程序升温条件下, 利用热重(TG)分析、差示扫描量热法(DSC)、固相原位反应池/FTIR 联用技术, 研究了没食子酸铋锆的热行为和热分解机理,描述了没食子酸铋锆的热分解过程, 分析得出其最终分解产物为Bi2O3、ZrO2和C. 利用螺压工艺制备了含没食子酸铋锆的推进剂样品, 研究了没食子酸铋锆对双基(DB)推进剂燃烧性能的影响, 分析了其燃烧催化作用. 结果表明, 没食子酸铋锆对双基推进剂的燃烧具有良好的催化作用, 是一种高效的燃烧催化剂; 没食子酸铋锆热分解的最终产物是催化燃烧的主要物质, 锆和碳则起辅助催化的作用.

关键词: 物理化学, 没食子酸铋锆, 推进剂, 热行为, 分解机理, 燃烧性能, 催化作用

Abstract:

Bismuth/zirconium gallate (Gal-BiZr) was synthesized from gallic acid, bismuth nitrate, and zirconyl nitrate firstly, and characterized by elemental analysis, X-ray fluorescence (XRF), and Fourier transform infrared (FTIR) spectroscopies. The thermal behavior and decomposition mechanism of Gal-BiZr in a temperature-programmed mode were investigated by thermogravimetric (TG) analysis, differential scanning colorimetry (DSC), and condensed phase thermolysis/FTIR techniques. The decomposition products of Gal-BiZr are Bi2O3, ZrO2, and C. Samples of propellants containing Gal-BiZr were prepared by extrusion technology, and the effect of Gal-BiZr on double-base (DB) propellant combustion properties was investigated. Gal-BiZr exhibits good catalytic behavior in the combustion of DB and Hexogeon (RDX)- CMDB propellants.

Key words: Physical chemistry, Bismuth/zirconium gallate, Propellant, Thermal behavior, Decomposition mechanism, Combustion property, Catalytic action

MSC2000: 

  • O643