Synthesis and characterization of bismuth titanate by an aqueous sol-gel method

Ma Hanxiao; Wang Jie; Li Xifei

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Synthesis and characterization of bismuth titanate by an aqueous sol-gel method

Ma Hanxiao,Wang Jie,Li Xifei

School of Electronic and Information Engineering, Xi’an Jiaotong University

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Funding: 国家“863”高科技资助项目（No.2003AA325030）

Opened online: 5 July 2006

Accepted by: none

Citation: Ma Hanxiao,Wang Jie,Li Xifei.Synthesis and characterization of bismuth titanate by an aqueous sol-gel method[OL]. [ 5 July 2006] http://en.paper.edu.cn/en_releasepaper/content/7473

A high stable, reproducible and water-based bismuth titanate (BTO) sol system has been synthesized by an aqueous sol-gel method. First bismuth nitrate was dissolved in acetic acid, and then it was mixed with a solution of lactic acid dissolved tetra-n-butyl titanate, subsequently, water was added to adjust sol concentration. The obtained sols or gels were characterized by Ultraviolet-Visible Spectrophotometer (UV), differential thermal analysis and thermo-gravimetry (TG-DTA), in-situ Raman, and high-temperature X-ray diffraction (HT-XRD). Results show that the BTO sol can keep stable for more than one year and completely convert into BTO at 533℃.

Keywords: Sol-Gel; Bismuth titanate (BTO); In-situ Raman; HT-XRD

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