期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 15, 期 11, 页码 2512-2517出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200802201
关键词
crystal growth; growth factors; morphology; nanostructures; size control
资金
- NSFC [90606006]
- State Key Project of Fundamental Research for Nanoscience and Nanotechnology [2006CB932300]
- Key grant Project of Chinese Ministry of Education [306020]
Monodisperse CeF3 and NaCeF4 nanocrystals have been synthesized by using the liquid-solid-solution (LSS) approach. The nucleation and growth of nanocrystalline CeF3 and NaCeF4 were controlled by both kinetics and thermodynamics, which can be investigated by the diffusion-controlled kinetic (DCK) model and surface chemical thermodynamics (SCT) theory. The DCK and SCT models were introduced to explain how the ripening time, reaction temperature, and initial concentrations affected the size transition of CeF3 and NaCeF4 nanocrystals in detail. Also, these models are believed to be universal and can be applied to explore the morphology evolution of almost all rare-earth fluoride nanocrystals.
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