| 纳米硬脂酸铅(Ⅱ)配合物的合成和性能研究 |
| Synthesis and Property of Nanoparticle Pb(Ⅱ)-Stearate Complex |
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| 摘要: 采用液相分散沉淀法制备了纳米硬脂酸铅(Ⅱ)配合物粉体。用热重分析(TG)、X-射线衍射仪(XRD)、透射电镜(TEM)、红外光谱(IR)、激光散射粒径分析仪和元素分析仪对样品的物相、形貌、粒径和组成进行了表征。研究了反应物浓度和分散剂用量对产物粒径的影响，以及溶剂对产物粒子形貌的影响。用DSC考察了纳米硬脂酸铅(Ⅱ)对吸收药(NC-NG)热分解的催化作用。结果表明：产物的平均粒径约为25 nm，纳米硬脂酸铅(Ⅱ))配合物对NC-NG热分解有明显的催化效果，它使NC-NG的分解峰温降低了6 ℃，分解热增加了1 130 J·g-1(约50.78%)。 |
| 关键词: 纳米粒子 铅 硬脂酸 分散沉淀法 配合物 燃烧催化剂 |
| 基金项目: |
| Abstract: The nanoparticle Pb(Ⅱ)-stearate complex was synthesized by liquid dispersion deposition method using Pb(Ac)2·3H2O and stearic acid as the reactants, and the products were characterized by TEM, XRD, TG, DSC, IR and element analysis. The effects of reactive conditions on particle size and morphology were investigated. In addition, the catalytic activity of nanoparticle Pb(Ⅱ)-stearate complex on the thermal decomposition of nitrocellulose-nitroglycerine(NC-NG) was also determined by DSC. The results showed that the average particle size of the complex was about 25 nm. The peak temperature of thermal decomposition of NC-NG decreased by 6.0 ℃, and the decomposition enthalpy ΔH increased by 1 130 J·g-1, due to the effects of nanoparticle Pb(Ⅱ)-stearate complex. |
| Keywords: nanoparticle lead stearic acid dispersion deposition method complex combustion catalyst |
| 投稿时间：2004-08-03 修订日期：2004-09-30 |
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| 洪伟良,赵凤起,刘剑洪,徐雪琼,李翠华,罗仲宽.纳米硬脂酸铅(Ⅱ)配合物的合成和性能研究[J].无机化学学报,2005,21(2):197-201. |
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