PbSnO_3@rGO纳米复合物的制备及其对CL-20热分解的影响  

Preparation of PbSnO_3@rGO Nanocomposite and Its Effect on the Thermal Decomposition of CL-20

作　　者：张建侃 赵凤起[1] 徐司雨[1] 杨燕京[1] 冉迎九 ZHANG Jian-kan ZHAO Feng-qi XU Si-yu YANG Yan-jing RAN Ying-jiu(Science and Technology on Combustion and Explosion Laboratory, Xi＇an Modern Chemistry Research Institute, Xi＇an 710065, China Xi＇an North Qinchuan Group Co. , Ltd, Xi＇an 710043, China)

机构地区：[1]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065 [2]西安北方秦川集团有限公司,陕西西安710043

出　　处：《火炸药学报》2017年第2期33-36,共4页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.21173163;No.21473130)

摘　　要：采用水热法制备了还原氧化石墨烯(rGO)负载PbSnO_3的纳米复合物(PbSnO_3@rGO),并通过XRD、SEM等方法对其进行了表征;用DSC法分析了制得的PbSnO_3@rGO和PbSnO_3-TDI还原型催化剂(r-PbSnO_3-TDI)对六硝基六氮杂异伍兹烷(CL-20)热分解的催化效果。结果表明,rGO作为基底负载PbSnO_3可以有效解决PbSnO_3纳米颗粒的团聚问题,极大地提高了其分散性;PbSnO_3@rGO对CL-20的热分解具有良好的催化活性,使CL-20的分解峰温降低1.32°C,表观分解热增加250J/g,CL-20的表观活化能由222.4kJ/mol降至181.1kJ/mol;PbSnO_3@rGO对CL-20的热分解催化效果优于r-PbSnO_3-TDI。PbSnO3@reduced graphene oxide （PbSnO3@rGO） nanocomposite was prepared using a hydrothermal method and characterized by XRD and SEM.The catalytic effects of reduced PbSnO3-TDI （r-PbSnO3-TDI） and prepared PbSnO3@rGO on the thermal decomposition of hexanitrohexaazaisowurtane （CL-20） were analyzed by DSC method.The results show that rGO as substrate supported PbSnO3 can effectively solve the problem of aggregation of PbSnO3 nanoparticles and greatly improve the dispersion of nanoparticles.PbSnO3@rGO has good catalytic activity on the thermal decomposition of CL-20.PbSnO3@rGO makes the decomposition peak temperature of CL-20 reduce by 1.32℃,the apparent decomposition heat of CL-20 increase by 250J/g and apparent activation energy of the thermal decomposition of CL-20 decrease from 222.4kJ/mol to 181.1kJ/mol.Compared with r-PbSnO3-TDI,PbSnO3@rGO shows better catalytic effect on the thermal decomposition of CL-20.

关 键 词：PbSnO3@rGO纳米复合物 CL-20 热分解 水热法 石墨烯 光催化剂 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O614[理学—无机化学]