CAJ | 학술논문

以十六烷基三甲基溴化铵（CTAB）/正丁醇/正辛烷/硝酸铈溶液（氨水）形成的反相微乳液体系为反应介质，并辅以溶剂热法合成纳米二氧化铈。考察了反应温度和油相与助表面活性剂的质量比对二氧化铈粉体的影响，并对制备的粉体进行X射线衍射（XRD ）以及透射电镜（T EM ）表征。通过表征可知，微乳液溶剂热法可以直接制备出纳米二氧化铈颗粒，不需进行前驱体的焙烧；随着反应温度的增加，纳米二氧化铈颗粒的粒径逐渐增大；在油相与助表面活性剂质量比增大的过程中，纳米二氧化铈颗粒的分散性更好，产物聚团减轻。
이십륙완기삼갑기추화안（CTAB）/정정순/정신완/초산시용액（안수）형성적반상미유액체계위반응개질，병보이용제열법합성납미이양화시。고찰료반응온도화유상여조표면활성제적질량비대이양화시분체적영향，병대제비적분체진행X사선연사（XRD ）이급투사전경（T EM ）표정。통과표정가지，미유액용제열법가이직접제비출납미이양화시과립，불수진행전구체적배소；수착반응온도적증가，납미이양화시과립적립경축점증대；재유상여조표면활성제질량비증대적과정중，납미이양화시과립적분산성경호，산물취단감경。
CeO2 particles were synthesised in water/oil(W/O) reverse microemulsion composed of cetylt-rimethy lammonium bromide (CTAB) ,n-butanol ,n-octane ,cerium nitrate solution ,ammonia aqueous so-lution by the microemulsion-assisted solvothermal method .The influences of the reaction temperature and the mass radio of the oil phase to cosurfactant the ceria nanoparticles were studied .The CeO2 parti-cles were characterized by X-ray diffraction (XRD) ,and transmission electron microscope (TEM ) ,re-spectively .The experimental results showed that nano ceria particles can be synthesised directly by mi-croemulsions solvothermal method without the precursor calcined .The size of particles were increased with increasing of the reaction temperature .With the mass ratio of the oil phase to cosurfactant increa-ing ,the dispersibility of the nano-ceria particles were the better and the product reunion were alleviated .