Toward a more environmentally benign synthesis of doped barium titanate

Green Chemistry Letters and Reviews

Anne Marteel-Parrish¹ 

关键词: stoichiometric control;    materials science;    electroceramics;    doped barium titanate;   

DOI  :  10.1080/17518250902758911

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

Barium titanate is one of the most thoroughly studied members of the perovskite family due to its prominent place in the electroceramic industry. To be used as a capacitor at room temperature, a high-dielectric constant is needed which is achieved through doping. The focus of this research was to develop a more environmentally benign alternative to the doping of barium titanate. The barium source was barium titanyl catecholate, Ba[Ti(cat)3] (aq) and the doping sources were strontium oxalate (SrC2O4) and strontium carbonate (SrCO3). The doping strategies included a solid-state synthetic pathway as well as microwave- and centrifuge-assisted methods which both employed water as the only solvent. The last two benign by design methods were tested with respect to their thermodynamic control over barium-to-strontium stoichiometric ratios. These methods of doping proved to be more environmentally friendly and economical while combining green chemistry and materials science.

【 授权许可】

Unknown