摘要
非水体系中合成纳米金属氧化物是一种继水体系中合成发展而来的新方法。非水体系中合成能克服许多水体系中所不能克服的缺点,有效防止产物的聚集,最终获得尺寸较小且尺寸范围分布较窄、形状均匀、不易团聚、表面特性较好的纳米粉末产物。综述了非水体系合成纳米CeO_2粉体的一些方法及其产物特征,并比较了各种方法的特点,最后总结了非水体系合成纳米CeO_2的优缺点并展望了其应用前景。
The synthesis of metal oxide nanoparticles in nonaqueous system is a valuable alternative to the well-known aqueous systems. The synthesis of metal oxide nanoparticles in nonqueous system is able to overcome the specific problems typical for many aqueous systems, which determines the aggregation behavior. The size distribution of nanoparticles synthesized in nonaqueous system is small, and it has better control over the particle size, shape, aggregation behavior, and surface properties. Preparation methods and characteristics of ceria nanoparticles synthesized in nonaqueous system are reviewed in the paper, and the features of each method are compared. Finally, the advantages and disadvantages of the synthesis of ceria in nonaqueous system are concluded and its applications prospect is also proposed.
关键词
非水体系合成
氧化铈纳米粉体
表征
应用
nonaqueous synthesis, ceria nanoparticles, characterization, application
