碳包覆纳米PbO的制备及其对AP热分解的催化作用研究
Preparation of Carbon-Coated Nano-PbO and Its Catalytic Performance for AP Thermal Decomposition
- 摘要
|
- 图/表
|
- 访问统计
|
- 参考文献
|
- 相似文献
|
- 引证文献
|
- 资源附件
|
- 文章评论
摘要:基于金属铅离子在推进剂中的催化应用，通过溶剂热法制备出2种Pb-MOF作为前驱体，将前驱体高温煅烧得到碳包覆纳米PbO，利用SEM、XRD、EDS对其进行表征；通过重结晶法将碳包覆纳米PbO和AP进行复合，采用DSC研究了碳包覆纳米PbO对AP的催化作用。结果表明：和原料AP相比，加入5%（质量比）碳包覆PbO-1催化剂后，AP的低温分解峰由308℃降至280℃，高温分解峰由426℃降至360℃，表明碳包覆纳米PbO对AP的放热分解有明显的催化作用。
Abstract:In view of the catalytic application of metal lead ions in propellants, two Pb-MOFs were prepared by solvothermal method as precursors, and the precursors were calcined at high temperature to obtain carbon-coated nano-PbO, which were characterized by SEM, XRD, and EDS. The carbon-coated nano-PbO and AP were combined by recrystallization method, and the catalytic effect of carbon-coated nano-PbO on AP was studied by DSC. The results show that compared with the raw material AP, the low-temperature decomposition peak of AP decreases from 308℃ to 280℃, and the high-temperature decomposition peak decreases from 426℃ to 360℃ after adding 5% (mass ratio) of carbon-coated PbO-1 catalyst. The study show carbon-coated nano-PbO has an obvious catalytic effect on exothermic decomposition of AP.
var swiper = new Swiper('.swiper_xq', {
navigation: {
nextEl: '.swiper-button-next',
prevEl: '.swiper-button-prev',
},
});
$(function(){
$('img').bigic();
});
jQuery(".slideTxtBox").slide({ trigger: "click" });
