期刊
JOURNAL OF RARE EARTHS
卷 29, 期 2, 页码 97-100出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(10)60410-3
关键词
CeVO4; hydrothermal method; temperature; precursor solution concentration; Ostwald ripening mechanism; rare earths
资金
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences [0804]
Selective-controlled structure and shape of CeVO4 nanocrystals were successfully synthesized via a hydrothermal method from Na3VO4 center dot 12H(2)O and Ce(NO3)(3)center dot 6H(2)O. The resulting products were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS). The influence of hydrothermal temperature, precursor solution concentration on the crystal and morphology of products were further studied. The results showed that the as-synthesized products exhibited pure single-crystal CeVO4 nanoparticles with tetragonal structure. The hydrothermal temperature and precursor solution concentration had important effects on the formation of CeVO4 nanoparticles. Furthermore, the growth mechanism of CeVO4 nanoparticles was explained with Ostwald ripening mechanism.
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