铁源对非水解法制备Fe2TiO5的影响

IF 0.9 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Processing and Application of Ceramics Pub Date : 2022-01-01 DOI:10.2298/pac2201007j

Feng Jiang, Guo Feng, Lina Yin, Qianqian Zhao, Yun-Hao Yu, Weihui Jiang

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引用次数: 2

摘要

采用非水解溶胶-凝胶法在600℃下合成了Fe2TiO5。研究了不同铁源对Fe2TiO5合成的影响。结果表明，以FeCl3为铁源制备的干凝胶不会形成Fe-O-Ti键，因为FeCl3是强路易斯酸，会引起均缩合。以Fe(OC2H5)3和FeOH(CH3COO)2为铁源制备的干凝胶中形成了Fe- o - ti键。然而，FeOH(CH3COO)2中的羟基容易导致均缩聚和颗粒团聚。因此，Fe(OC2H5)3是最理想的铁源，具有良好的合成效果和粒子分散效果。

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Effect of iron source on nonhydrolytic sol-gel synthesis of Fe2TiO5

Fe2TiO5 was synthesized via nonhydrolytic sol-gel method at 600?C. The effects of iron sources on the synthesis of Fe2TiO5 were investigated. It was demonstrated that Fe-O-Ti bonds will not be formed in the xerogels prepared by taking FeCl3 as iron source because it is strong Lewis acid and induces homocondensation. Fe-O-Ti bonds were formed in the xerogels prepared by using Fe(OC2H5)3 and FeOH(CH3COO)2 as iron sources. However, the hydroxyl group in FeOH(CH3COO)2 easily leads to homocondensation and particles agglomeration. Thus, Fe(OC2H5)3 is optimal iron source with both excellent synthesis and particle dispersion effects.

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来源期刊

Processing and Application of Ceramics MATERIALS SCIENCE, CERAMICS-

CiteScore

1.90

自引率

9.10%

发文量

审稿时长

10 weeks

期刊介绍： Information not localized