不同类型表面活性剂对铈锆固溶体性能的影响  

Effect of Different Types of Surfactants on Properties of Ceria-Zirconia Solid Solutions

作　　者：刘伟[1] 李佩珩[1] 戴洪兴[1] 何洪[1] 孙继红[1] 訾学红[1] 

机构地区：[1]北京工业大学环境与能源工程学院化学化工系催化化学与纳米科学研究室,北京100022

出　　处：《中国稀土学报》2005年第S1期17-20,共4页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金资助项目(20222201)

摘　　要：研究了以阳离子、非离子和阴离子表面活性剂作模板剂来制备立方氟石型晶相结构的Ce0.75Zr0.25O2固溶体,表征了铈锆固溶体的物理化学性质。结果表明,添加阳离子和非离子表面活性剂可制备出较大比表面积和较好储释氧性能的固溶体,其中以TW-80为模板剂制得的固溶体的比表面积最大(104．0 m2·g-1),储氧量最高(0．473 mmol·g-1)。The methods for preparing cuhic fluorite-type Ce0.75Zr0.25O2 solid solutions by using cationic, nonionic and anionic surfactants as template were in vestigated and their physicochemical properties were characterized. It is found that the Ce0.75Zr0.25O2 solid solutions derived from the cationic and nonionic sur- factants-templating approaches possess larger surface areas and better oxygen storage-release behaviors, in which the TW-80 template-derived ceria-zirconia show the highest surface area (104. 0 m2·g-1) and the highest oxygen storage capacity (0.473 mmol·g-1).

关 键 词：铈锆固溶体 储释氧性能 表面活性剂 模板剂法 稀土 

分 类 号：O611.3[理学—无机化学]