作　　者： ; ; ; ; ; ;

机构地区： 深圳大学师范学院

出　　处： 《无机化学学报》 2004年第3期278-282,236,共6页

摘　　要： Nanocomposite PbSnO3 was synthesized by coprecipitation method , and its phase evolution process was investigated. The particle size, crystal form, and phase of samples were determined with XRD, TEM and EDS. The catalytic actiyity of sample on the thermal decomposition of RDX was investigated by DSC. The results show that nanocomposite PbSnO3 with the diameter of 9 nm can be obtained by calcining at 600 ℃ for 2 h, which crystal is cubic (pyrochlore type). The catalytic actiyity of nanocomposite PbSnO3 on the thermal decomposition of RDX is much higher than that of normal PbSnO3. The nanocomposite PbSnO3 can decrease the peak temperature of thermal decomposition of RDX from 240.1 ℃ to 236.5 ℃, and the decomposition enthalpy ΔH of RDX increases 722 J·g-1 (about 70%). Nanocomposite PbSnO3 was synthesized by coprecipitation method , and its phase evolution process was investigated. The particle size, crystal form, and phase of samples were determined with XRD, TEM and EDS. The catalytic actiyity of sample on the thermal decomposition of RDX was investigated by DSC. The results show that nanocomposite PbSnO3 with the diameter of 9 nm can be obtained by calcining at 600 ℃ for 2 h, which crystal is cubic (pyrochlore type). The catalytic actiyity of nanocomposite PbSnO3 on t...

关 键 词： 纳米复合粒子 共沉淀法 催化剂黑索今热分解

领　　域： [理学] [理学]