Synthesis and characterization of nanocrystalline lanthanide oxysulfide via a La(OH)3 gel solvothermal route

被引:26
作者
Jiang, Y
Wu, Y
Xie, Y
Qian, YT [1 ]
机构
[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China
关键词
D O I
10.1111/j.1151-2916.2000.tb01603.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A La(OH)(3) gel solvothermal process has been developed for the preparation of nanocrystalline lanthanide oxysulfide (La2O2S) in polar solvents at 300 degrees C through a reaction between a La(OH)(3) gel and K2S. X-ray powder diffraction (XRD) indicated that the product was hexagonal La2O2S with cell parameters a = 4.046 Angstrom and c = 6.951 Angstrom. Transmission electronic microscopy (TEM) showed that different morphology nanocrystallites were formed, including particles with diameters of about 10 nm and nanorods about 10 nm in diameter and 300 mn in length, depending on the solvent.
引用
收藏
页码:2628 / 2630
页数:3
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