摘要
采用胶溶法合成了纳米CeO2 水溶胶 ,探讨了合成CeO2 水溶胶的最佳实验条件 ,研究了pH值、反应物浓度、水浴温度对胶溶过程的影响。TEM分析表明 :所制备的水溶胶中的CeO2 纳米粒子呈球形 ,约 3nm ,粒径分布均匀 ,无明显团聚现象 ;ED分析表明 ,CeO2 纳米粒子为多晶结构 ,并有少量单晶结构。
CeO 2 nanoparticles hydrosol was synthesized by colloidal chemical method. The optimum experiment conditions for the preparation of CeO 2 nanoparticles hydrosol were discussed. The effects of pH values, the reactant concentration and temperature on peptization process were studied. TEM photos showed that the CeO 2 nanoparticles were spherical in shape and the size was about 3nm. Particle size distribution was in narrow range, and no agglomerates were observed. ED images indicated that the CeO 2 nanoparticles were polycrystalline structure, and some of CeO 2 were monocrystal particles.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期229-231,共3页
Rare Metal Materials and Engineering
基金
吉林省科技发展计划资助项目 (2 0 0 0 0 12 8)
