TiO2对水热法制备钛酸锶钡的影响
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四川省教育厅基金资助项目(12ZB164)

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Influence of TiO2 on Preparation of Barium Strontium Titanate(BST) by Hydrothermal Method
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    摘要:

    以乙酸锶、乙酸钡、钛酸丁酯为原料,通过溶胶凝胶法制备出钛酸锶钡(BST)前驱体。在前驱体中分别加入10%金红石TiO2、锐钛矿TiO2和用水热法制备的一维TiO2,再进行水热合成,得到3种不同的水热产物。用傅里叶变换红外光谱仪(FTIR)、X线衍射仪(XRD)、扫描电子显微镜镜(SEM)对前驱体和3种水热产物进行物相和形貌的表征,并对水热产物的生长机理和形成原因进行探讨。结果表明,在前驱体中添加锐钛矿TiO2能够制备出柱状晶结构的BST;添加一维TiO2的前驱体生成了一维的BST晶体。

    Abstract:

    The barium strontium titanate(BST) precursors were prepared by SolGel method by using strontium acetate, barium acetate and tetrabutyl titanate(Ti(OC4H4)4) as the raw materials. Ten percent of TiO2(anatase),TiO2(rutile) and onedimensional TiO2 were added respectively into the precursors. The three different products were produced from the precursors of different additives by the hydrothermal method with the same hydrothermal condition. The phase structure and morphology of products were characterized by Fourier transform infrared spectrometer(FTIR),Xray powder diffraction (XRD) and scanning electron microscope (SEM).The growth mechanism and formation reason of the hydrothermal products were discussed. The results indicated that the precursors with TiO2(anatase) could produce the columnar crystal of BST.Adding the onedimensional TiO2 prepared by hydrothermal method in the precursors can prepare BST crystal with onedimensional morphology.

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吴啸天, 薛屺, 李松霞. TiO2对水热法制备钛酸锶钡的影响[J].压电与声光,2017,39(5):725-728. WU Xiaotian, XUE Qi, LI Songxia. Influence of TiO2 on Preparation of Barium Strontium Titanate(BST) by Hydrothermal Method[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2017-10-10
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