Synthesis of titanium-based ceramics by a new synthetic route of water-soluble titanium complexes
Synthesis of titanium-based ceramics by a new synthetic route of water-soluble titanium complexes
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DOI：
10.2109/jcersj2.119.494
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发表时间：
2011-06
影响因子：
1.1
通讯作者：
Kazuhiro Yamamoto;S. Matsushima;K. Tomita;Y. Miura;M. Kakihana
中科院分区：
文献类型：
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作者：
Kazuhiro Yamamoto;S. Matsushima;K. Tomita;Y. Miura;M. Kakihana
以TiCl_4和Ti（SO_4）_2为原料，发展了一条新的水溶性配合物的合成路线。钛的产率和Cl−离子的去除率分别超过85%和98%。通过这种新的合成路线获得的乳酸钛络合物溶液保持稳定超过3个月，没有任何沉淀。在873 K下加热5 h，由乳酸钛配合物合成了单相的CaTiO 3、SrTiO 3和BaTiO 3。纳米结构的CaTiO 3、SrTiO 3和BaTiO 3的粒径分别为50、30和30 nm，并且小于通过固态方法获得的粒径。我们已经成功地在比固态方法所需的温度低400 K的温度下合成了CaTiO 3、SrTiO 3和BaTiO 3的非常细的颗粒。
We developed a new synthetic route of water-soluble complexes using TiCl4 and Ti(SO4)2 as starting materials. The yield of Ti and the removal rate of the Cl− ion were over 85 and 98%, respectively. The lactato titanium complex solution obtained by this new synthetic route remained stable for more than 3 months without any precipitation. Single-phase CaTiO3, SrTiO3, and BaTiO3 were synthesized from the lactato titanium complex by heating at 873 K for 5 h. The nano-structured CaTiO3, SrTiO3, and BaTiO3 particle sizes were 50, 30, and 30 nm in diameter, respectively, and smaller than those obtained by the solid-state method. We have succeeded in the synthesis of very fine particles of CaTiO3, SrTiO3, and BaTiO3 at a temperature 400 K lower than that required for the solid-state method.