以CeO_2纳米颗粒可控合成CeOCl纳米颗粒  

Controlled Synthesis of CeOCl Nanoparticles by Transformation of CeO_2 Nanoparticles

作　　者：李磊磊[1] 熊春荣[1] 

机构地区：[1]海南大学材料与化工学院,海口570228

出　　处：《材料导报（纳米与新材料专辑）》2012年第2期75-77,85,共4页

基　　金：浙江省自然科学基金(Y4110116)

摘　　要：以水热法合成的粒径7nm左右的CeO2纳米立方体颗粒为合成CeOCl的原料,在2种不同的反应系统中分别得到了22nm的CeOCl立方体和144nm的CeOCl花形纳米颗粒。十四烷基三甲基氯化铵为反应提供氯源,在油胺作保护剂条件下,CeO2纳米颗粒转化为CeOCl纳米立方体;在1,2-十六烷二醇作还原剂、油胺和癸酸作保护剂条件下,CeO2转化为花状CeOCl纳米颗粒。CeOCl的最终形貌取决于还原剂与保护剂。CeO2 nanocubes of 7nm, synthesized by a reported method, were used as starting materials for CeOCl formation. At different reaction conditions, CeOCl nanocubes with an average size of 22nm and CeOCl nanc〉 flowers with an average size of 144nm were obtained. Trimethyl tetradecylammonium chloride was used as source of chloride ions, in the presence of oleylamine as capping agents, CeO2 nanocubes were synthesized; in the presence of 1,2- hexadecanediol as reducing agents and oleylamine/decanoic acid as capping agents, CeOCl nano-flowers were obtained. The morphology of CeOCl is controlled by reducing agents and capping agents.

关 键 词：CEO2 CeOCl 纳米颗粒 形貌控制 

分 类 号：TQ016[化学工程]