期刊
MATERIALS RESEARCH INNOVATIONS
卷 17, 期 1, 页码 43-48出版社
MANEY PUBLISHING
DOI: 10.1179/1433075X12Y.0000000003
关键词
Bismuth titanate; Perovskite; Bismuth glycolate; Sol-gel process
资金
- National Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University
Bismuth titanate (Bi4Ti3O12) is successfully synthesised using bismuth glycolate as a bismuth source and acetic acid and ethanol as solvents via sol-gel process without adding a complexing agent. The synthesis parameters investigated are acetic acid to ethanol ratio, mechanical stirring time, calcination time and temperature. It is found that an increase in the acetic acid to ethanol ratio causes an increase in the gelation time, and the calcination temperature is the key factor in transformation to a crystalline Bi4Ti3O12 perovskite phase. The perovskite phase of Bi4Ti3O12 in a nanoplate shape is obtained after stirring the precursor mixture solution containing 0.1 acetic acid to ethanol ratio for 1 h at room temperature, followed by calcination of the dried gel at 600 degrees C for 1 h.
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