爆轰法合成纳米CeO_2粉末  

Synthesis of nano-CeO_2 powder by detonation method

作　　者：韩志伟[1] 解立峰[1] 邓吉平[1] 解一超[1] 陈际洋[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《爆炸与冲击》2014年第1期106-110,共5页Explosion and Shock Waves

基　　金：国家自然科学基金项目(11102091);江苏省自然科学基金项目(BK20130760);江苏省普通高校研究生科研创新计划项目(CXZZ12_0178)~~

摘　　要：爆轰合成过程中采用Ce(NO3)3·6H2O制备的可爆药剂,并利用X射线衍射仪(XRD)和透射电子显微镜(TEM)对合成的纳米CeO2粉末进行了检测,研究了起爆方式对于合成产物结晶化度、粒径和形貌的影响。结果表明,采用Ce(NO3)3·6H2O制备的可爆药剂,可以合成立方晶系的球形纳米CeO2;提高可爆药剂的爆速,可有效降低纳米CeO2的粒径,得到球形化更好的纳米粒子。The blasting agent was prepared by choosing Ce（NO3）3 · 6H2O as the major ingredient to synthesize nano-CeO2 powder by the detonation method. The as-synthesized products were character- ized by X-ray diffraction （XRD） and transmission electron microscopy （TEM）. Thereby, the influ- ences of the initiation manners on the crystallization, particle size and morphology of the as-synthe- sized products were analyzed. The results indicate that CeO2 spherical nano-particles whose crystal structure belongs to cubic system can be synthesized by using the blasting agent in which Ce（NO3）3 · 6H2O acting as the major ingredient. And it is an effective method to decrease the particle size and improve the spherification of nanq-CeO2 by increasing the detonation velocity of the blasting agent.

关 键 词：爆炸力学 纳米CeO2粉末 爆轰合成 可爆药剂 立方晶系 Ce(NO3)3·6H2O XRD TEM 

分 类 号：O381[理学—流体力学] O614.33[理学—力学]