溶胶-凝胶法制备钛酸钡纳米粉体
Preparation of Barium Titanate Nanoparticles by Sol-gel Method
杨雅文1
作者信息
- 1. 中国原子能科学研究院, 北京 102413
- 折叠
摘要
以钛酸四丁酯和乙酸钡为原料,乙醇和乙酸为溶剂,采用溶胶-凝胶法制备了钛酸钡纳米粉体,并通过XRD、SEM、TG-DTA分析,确定最优工艺条件为:凝胶化温度 70℃,混合溶液pH值为 3.0～4.0,热处理温度 800℃,可获得粒径在50 nm左右的单一钙钛矿相钛酸钡粉体.
Abstract
Using tetrabutyl titanate and barium acetate as raw materials,ethanol and acetic acid as solvents,barium titanate nano powders were prepared by sol-gel method.Through XRD,SEM and TG-DTA analysis,the optimal process conditions were determined as follows:gel temperature 70℃,pH value of mixed solution 3.0～4.0,and heat treatment temperature 800℃.A single perovskite phase barium titanate powder with a particle size of about 50 nm could be obtained.
关键词
溶胶-凝胶法/钛酸钡/粉体Key words
sol-gel method/barium titanate/powder引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据