科研之友
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摘要
Barium titanate has been synthesized in pores of oxide matrices using barium titanyl oxalate and barium titanyl peroxide (peroxotitanate) by a sol-gel process and by dispersing the precursors together with pyrogenic oxides in water. The composites were characterized by X-ray diffraction, differential thermal analysis, nitrogen adsorption measurements, transmission electron microscopy, dielectric spectroscopy, and photocatalytic activity measurements. The results demonstrate that the pore structure of the composites forms concurrently with their crystal structure. The composite produced using pyrogenic alumina has high dielectric permittivity.
- 出版日期2012-9
