Solvothermal Synthesis of CeO2 Nanoparticles
Ultrafine CeO2 nanoparticles were synthesized directly via solvothermal treatment of Ce(NO3)3·6H2O powder in toluene at 180 °C for 48 h, and characterized by X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and UV-vis absorption spectrum. The results from XRD, Raman and XPS revealed the formation of pure cubic phase CeO2 with some oxygen vacancies. The TEM image disclosed that the as-synthesized CeO2 comprised nanoparticles of about 5–8 nm. The UV-vis absorption spectrum showed that the as-synthesized CeO2 nanoparticles had a wide UV absorption band centered at around 326 nm (3.8 eV).
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Y. C. Zhang and E. R. Zhang, "Solvothermal Synthesis of CeO2 Nanoparticles", Advanced Materials Research, Vols. 236-238, pp. 2000-2003, 2011