NDLI: Synthesis of CeO$_{2}$ or α–Mn$_{2}$O$_{3}$ nanoparticles via sol

Content Provider	SpringerLink
Author	Gnanam, S. Rajendran, V.
Copyright Year	2010
Abstract	Nanocrystalline cubic fluorite/bixbyite CeO$_{2}$ or α–Mn$_{2}$O$_{3}$ has been successfully synthesized by using methanol as a solvent via sol–gel method calcined at 400 °C. The obtained products were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), UV–vis absorption and Photoluminescence (PL) spectroscopy. TEM reveals that the as-synthesized ultra-fine samples consist of elliptical/spherical and sheet-like morphology of crystalline particles of 8/30 nm, which are weakly aggregated. Optical absorbance spectra reveal that the absorption of ceria in the UV region originates from the charge- transfer transition between the O$^{2−}$ (2p) and Ce$^{4+}$ (4f) orbit in CeO$_{2}$. However, α–Mn$_{2}$O$_{3}$ nanostructures with nearly pure band gap emission should be of importance for their applications as UV emitters.
Starting Page	62
Ending Page	69
Page Count	8
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	58
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2010-11-11
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Metal-oxide CeO$_{2}$ or α–Mn$_{2}$O$_{3}$ Nanoparticles Sol–gel process Optical properties Inorganic Chemistry Nanotechnology Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods
Content Type	Text
Resource Type	Article
Subject	Biomaterials Electronic, Optical and Magnetic Materials Condensed Matter Physics Ceramics and Composites Materials Chemistry Chemistry

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