SnO_2-Cu_2O/CNTs复合催化剂的制备及对FOX-12热分解的催化性能  

Synthesis of SnO_2-Cu_2O/CNTs Catalyst and Its Catalytic Effect on Thermal Decomposition of FOX-12

作　　者：张金霞[1] 洪伟良[1] 赵凤起[2] 刘剑洪[1] 田德余[1] 朱秀英[1] 马永强[1] 

机构地区：[1]深圳大学化学与化工学院,广东深圳518060 [2]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2011年第2期47-51,共5页Chinese Journal of Explosives & Propellants

基　　金：国防重点实验室基金项目(9140C3503020605)

摘　　要：以氯化铜、四氯化锡和碳纳米管为原料,采用浸渍法和液相化学沉积法相结合制得SnO2-Cu2O/CNTs复合催化剂,采用XRD、SEM、TEM、EDS等对催化剂进行表征,并用DSC研究催化剂对FOX-12热分解特性的影响。结果表明,纳米金属氧化物以5-10 nm的球形颗粒形态附着在碳纳米管表面,分散较均匀。催化剂使N-脒基脲二硝酰胺盐（FOX-12）的分解峰温降低,放热量增加,表面活化能降低,表现出良好的催化效果。当FOX-12与催化剂质量比5∶1混合时,FOX-12的分解峰温降低18.08℃,放热量增加148 J/g。SnO2-Cu2O/CNTs composite catalyst was prepared by integrate infusioning method with liquid phase deposition method under normal temperature and normal pressure using copper chloride dihydrate,stannic tetrachloride pentahydrate,and carbon nanotubes as the reactant.The catalyst was characterized with XRD,SEM,TEM and EDS.The catalytic effects of catalyst on the thermal decomposition of FOX-12 were investigated by DSC.The test result showed that SnO2 and Cu2O nanoparticles were attached on carbon nanotubes throughout evenly in oval morphologies with 5-10nm in diameter.The catalyst can make the decomposition peak temperature of FOX-12 decrease,the decomposition enthalpy increase and the apparent activation energies decrease.When the mass ratio of FOX-12 with catalyst was 5∶1,catalyst made the thermal decomposition temperature of FOX-12 shift downward by 18.08℃ and the decomposition enthalpy increase by 148J/g.

关 键 词：分析化学 复合催化剂 碳纳米管 二氧化锡 FOX-12 热分解 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TQ564[化学工程—炸药化工]