Reverse micellar synthesis of cerium oxide nanoparticles

被引:136
作者
Sathyamurthy, S [1 ]
Leonard, KJ [1 ]
Dabestani, RT [1 ]
Paranthaman, MP [1 ]
机构
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
关键词
D O I
10.1088/0957-4484/16/9/089
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Cerium oxide, CeO(2), nanoparticles were prepared using reverse micellar synthesis, using cerium nitrate as a starting material, sodium hydroxide as a precipitating agent, n-octane as the oil phase, cetyl trimethyl ammonium bromide (CTAB) as the surfactant, and 1-butanol as the co-surfactant. Using x-ray diffraction (XRD) and high resolution transmission electron microscopy.(HRTEM), the average size of the nanoparticles obtained was found to be around 3.7 nm, and the particles had a well defined polyhedral shape. The particles. also showed strong UV absorption and room temperature photoluminescence. The photoluminescence peak was sensitive to the particle concentration and showed a blue-shift upon dilution.
引用
收藏
页码:1960 / 1964
页数:5
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