乙二醇
材料科学
四方晶系
纳米棒
钛酸钡
热液循环
化学工程
水溶液
氢氧化物
氢氧化钡
溶解
结晶
水热合成
溶剂
无机化学
纳米技术
结晶学
有机化学
晶体结构
化学
复合材料
陶瓷
工程类
作者
Miki Inada,Naoya Enomoto,Katsuya Hayashi,Junichi Hojo,Sridhar Komarneni
标识
DOI:10.1016/j.ceramint.2014.12.137
摘要
Tetragonal barium titanate (BaTiO3) nanorods were synthesized from hydroxide precursor by a hydrothermal/solvothermal method with 10 vol% ethylene glycol as solvent. The hydroxide precursor slurry was prepared by the addition of 10 M NaOH to a mixed solution of BaCl2 and TiCl4. When the above aqueous slurry was heated with water only at 200 °C, cubic BaTiO3 nanocrystals formed, whereas tetragonal BaTiO3 nanorods were obtained when heated with 10 vol% ethylene glycol. The crystallization of cubic BaTiO3 via dissolution–reprecipitation of precursor could be suppressed by the addition of ethylene glycol, resulting in the formation of tetragonal BaTiO3 under hydrothermal treatment at 200 °C.
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