Characterization of Well-Dispersed CeO2 Nanoparticles Prepared by a New Method of Reverse Microemulsion
Well-dispersed CeO2 nanoparticles were successfully prepared in a simple system composed of sodium bis (2-ethylhexyl) sulfosuccinate (AOT)- octane-water (W/O) microemulsion in this paper. The morphology and microstructure of the products were characterized by the laser particle size analyzer, Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometer (XRD), differential scanning calorimeter (DSC) and transmission electron microscope (TEM). It was found that the CeO2 nanoparticles obtained from this method have well-proportioned size distributions; the surfactant (AOT) molecule was adsorbed on the surface of CeO2 nanoparticles precursor, which is favorable for the dispersion of CeO2 nanoparticles; the CeO2 nanoparticles calcined was a crystal of the cubic structure. In addition, the mechanism on the formation of the CeO2 nanoparticles was also proposed in this paper.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
F. M. Feng et al., "Characterization of Well-Dispersed CeO2 Nanoparticles Prepared by a New Method of Reverse Microemulsion", Advanced Materials Research, Vols. 194-196, pp. 781-784, 2011