標題: Simple chemical preparation of perovskite-based materials using alkali treatment
作者: Chen, Po-Chin
Tsai, Min-Chiao
Huang, Yi-Jen
Chiu, Hsin-Tien
Lee, Chi-Young
應用化學系
Department of Applied Chemistry
公開日期: 2012
摘要: In this work, a simple alkali treatment process was introduced to synthesize ABO(3) perovskite related materials: CaTiO3 (CTO), SrTiO3 (STO), BaTiO3 (BTO) and BaxSr1-xTiO3 (BST). The perovskite materials, synthesized by using stoichiometric amounts of corresponding alkaline solutions Ba(OH)(2), Sr(OH)(2), Ca(OH)(2) and powdered TiO2, are pure phase and well-crystallized. The obtained powders are round, round-edged cubes and cubes with sharp edges for BaTiO3, SrTiO3 and CaTiO3 respectively. What's more, the Ba content (x) in BST can be directly and precisely modified to be any value between one and zero. And, the morphology of SrTiO3 can be manipulated by altering the reaction time. As time is prolonged, the morphology of the product changes from round to round-edged cubes to sharp-edged cubes. In the future, materials with such specific microstructure and morphologies may be used in electro-optical and photocatalytic applications.
URI: http://hdl.handle.net/11536/15694
http://dx.doi.org/10.1039/c2ce06598c
ISSN: 1466-8033
DOI: 10.1039/c2ce06598c
期刊: CRYSTENGCOMM
Volume: 14
Issue: 6
起始頁: 1990
結束頁: 1993
顯示於類別:期刊論文


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  1. 000300443200013.pdf