Synthesis of Highly Dispersed Barium Titanate Nanoparticles by a Novel Solvothermal Method
A novel solvothermal route has been developed to synthesize highly dispersed nanocrystalline barium titanate (BaTiO3), using a mixture of ethylenediamine and ethanolamine as a solvent. The as-synthesized BaTiO3 nanoparticles were characterized by X-ray powder diffraction, transmission electron microscopy (TEM), high-resolution TEM, Fourier transform infrared spectroscopy, and thermal analysis. Based on the results of characterizations, the organic solvent was found to influence strongly the crystal growth and dispersibility of BaTiO3. The BaTiO3 nanoparticles obtained were highly dispersed and crystalline with a cubic perovskite structure. The particle size derived from the TEM ranged from 5 to 20 nm.
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Document Type: Research Article
Affiliations: Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Publication date: January 1, 2008