高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (5): 889.

• 研究论文 • 上一篇    下一篇

纳米2,4-二羟基苯甲酸铅(Ⅱ)配合物的合成及其燃烧催化性能研究

洪伟良1, 刘剑洪1, 邱超儿1, 赵凤起2, 田德余1, 张培新1, 王芳1   

  1. 1. 深圳大学师范学院化学与生物系, 深圳518060;
    2. 西安近代化学研究所, 西安710065
  • 收稿日期:2004-11-03 出版日期:2005-05-10 发布日期:2005-05-10
  • 通讯作者: 洪伟良(1955年出生),男,教授,主要从事纳米材料和催化剂的研究.E-mail:hongwl555@163.com E-mail:hongwl555@163.com
  • 基金资助:

    火炸药国防科技重点实验室基金(批准号:51455030303QT5101)资助.

Synthesis and Combustion Catalytic Activity of Nanoparticle Pb(Ⅱ)-Resorcylic Acid Complex

HONG Wei-Liang1, LIU Jian-Hong1, QIU Chao-Er1, ZHAO Feng-Qi2, TIAN De-Yu1, ZHANG Pei-Xin1, WANG Fang1   

  1. 1. Department of Chemistry and Biology. Normal College, Shenzhen University, Shenzhen 518060, China;
    2. Xi'an University of Architecture and Technology, Xi'an 710055, China
  • Received:2004-11-03 Online:2005-05-10 Published:2005-05-10

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被引次数

28

摘要： 采用液相分散沉淀法制备了纳米2,4-二羟基苯甲酸-Pb(Ⅱ)配合物粉体,并用TG,XRD,TEM,IR和元素分析对产物进行了表征.研究了反应条件对产物粒径和粒子形貌的影响.用DSC考察了产物对吸收药热分解的催化作用.结果表明,在水溶液中得到的产物为15nm×40nm的棒状粒子,而在乙醇溶液中得到的是粒径约为50nm的球形粒子.产物对吸收药热分解有显著的催化效果,使吸收药的分解峰温降低5.6℃,分解热增加918J/g.

关键词: 纳米粒子, 铅盐, 2, 4-二羟基苯甲酸, 分散沉淀法, 配合物, 燃烧催化剂

Abstract: The nanoparticle Pb(Ⅱ)-resorcylic acid complex were synthesized by liquid dispersion deposition method by using Pb(Ac)2·2H2O and resorcylic acid as the reactant, and characterized with TEM, XRD, TG, DSC, IR and element analysis. The effects of reactive condition on the particle size and the morphology of complexes were investigated. In addition, the catalytic activity of nanoparticle PbRes complex on the thermal decomposition of nitrocellulose-nitroglycerine(NC-NG) was also determined by DSC. The results show the spherical complex nanoparticles with a diameter of 50 nm were obtained in ethanol solution, and the stick-shaped complex nanoparticles with a diameter of 15 nm and length of 40 nm were obtained in H2O. The peak temperature of the thermal decomposition of NC-NG decreases by 5.6 ℃, and the decomposition enthalpy ΔH increases by 918 J/g(about 41%), in the presence of nanoparticle PbRes complex.

Key words: Nanoparticle, Lead salt, Resorcylic acid, Dispersion deposition method, Complex, Combustion catalyst

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