溶剂热合成Cu2O微球及其对高氯酸铵热分解的催化作用  

Solvo-Thermal Synthesis of Cu_2O Micro-Spheres and Their Catalytic Performance for Thermal Decomposition of Ammonium Perchlorate

作　　者：罗小林[1] 韩银凤[1] 杨德锁[1] 陈亚芍[2] 

机构地区：[1]宝鸡文理学院化学化工系,植物化学陕西省重点实验室,陕西宝鸡721013 [2]陕西师范大学化学化工学院,应用表面与胶体化学教育部重点实验室,西安710062

出　　处：《物理化学学报》2012年第2期297-302,共6页Acta Physico-Chimica Sinica

基　　金：陕西省教育厅项目(11JK0603);陕西省重点实验室项目(11JS007)资助~~

摘　　要：以聚乙烯吡咯烷酮(PVP)为添加剂,利用溶剂热法合成了Cu2O微球.考察了PVP用量以及反应温度对产物形貌的影响,并在反应时间为2.5与4.5h时分别合成了直径为100-200nm和1μm的Cu2O微球.同时,利用差热分析(DTA)技术考察了不同直径的Cu2O微球对高氯酸铵(AP)热分解的催化效果,结果表明:添加2%(w)的直径为100-200nm和1μm的Cu2O微球使得AP的高温分解温度分别降低了116和118°C,AP在低温阶段的分解量也明显提高.Cu2O micro-spheres were fabricated by a solvothermal method using poly vinylpyrrolidone （PVP） as an additive. The influences of PVP dosage and reaction temperature on the morphologies of the products were investigated. Cu2O micro-spheres with diameters of 100-200 nm and about 1 μm were synthesized with reaction time of 2.5 and 4.5 h, respectively. Meanwhile, differential thermal analysis （DTA） was used to determine the catalytic performance of these Cu2O micro-spheres with different diameters for thermal decomposition of ammonium perchlorate （AP）. Adding 2% （w） Cu2O micro-spheres with diameters of 100-200 nm and about 1 μm into AP decreased the maximum temperature of AP decomposition by 116 and 118℃, respectively, and increased the amount of AP decomposed at lower temperature.

关 键 词：Cu2O微球 溶剂热合成 高氯酸铵 热分解 

分 类 号：O614.121[理学—无机化学]