期刊
JOURNAL OF CRYSTAL GROWTH
卷 247, 期 3-4, 页码 419-424出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-0248(02)02015-8
关键词
crystal morphology; low dimensional structures; hydrothermal crystal growth; niobates
Nanocrystalline potassium niobates (KNbO3, KNb3O8 and K4Nb6O17) of different morphologies were synthesized with the low-temperature hydrothermal method by adjusting the alkalinity of the reaction system. A possible formation mechanism of the nanocrystalline niobates was proposed based on the experimental results. All of the products were characterized with X-ray powder diffraction and transition electron microscopy. The Fourier transform (FT) infrared, FT-Raman and UV-VIS properties of the niobates were studied. (C) 2002 Elsevier Science B.V. All rights reserved.
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