Controlled synthesis of CeO_2 nanoparticles from the coupling route of homogenous precipitation with microemulsion

摘要

CeO_2 nanoparticles with good monodispersity and narrow size distribution were synthesized by the combined method of homogenous precipitation with microemulsion. The affect factors of preparing conditions were investigated. The products were characterized by XRD, TEM, FTIR, DTA and TGA. It was found that the average size of CeO_2 nanoparticles could be tailored by adjusting the precipitation temperature, calcination temperature, and the sort of surfactants or the relative concentration of reactants.