Preparation and characterization of monodisperse cerium oxide nanoparticles in hydrocarbon solvents

被引：154

作者：

Gu, Hua ^{[1
]}

Soucek, Mark D. ^{[1
]}

机构：

[1] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA

来源：

CHEMISTRY OF MATERIALS | 2007年 / 19卷 / 05期

关键词：

D O I：

10.1021/cm061332r

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Uniform-sized monodisperse cerium oxide nanoparticles were prepared in a one-step reaction. A cerium-oleate complex was heated in an organic solvent with high boiling point to decompose and form nanocrystals. The products were characterized by Raman spectroscopy, XRD, UV-visible spectroscopy, room-temperature photoluminescence spectroscopy, and TEM. The TEM images and UV-visible spectra show that the CeO(2) particles prepared are uniform nanosized and absorb UV light in the range of 250-400 nm. The size of the nanoparticles prepared can be controlled from 5 to 20 nm by choice of solvent, reaction time, and reactant concentration without any size sorting. The nanoparticles show a strong violet/blue emission at 400 nm in photoluminescence spectrum (PL). The PL emission was found to be sensitive to the particle size.

引用

页码：1103 / 1110

页数：8

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