摘要
以Ti(OC4H8)4为无机前驱体、正辛酸为溶剂,在80～100℃一步合成了单分散的锐钛矿TiO2纳米棒状粉末.用X射线衍射、高分辨透射电子显微镜观察对样品进行了表征.结果表明:纳米棒状粉末具有窄的尺寸分布,直径为3～4 nm,长度为10～20 nm,长度方向为锐钛矿相c轴.此外,初步探讨了纳米棒的形成机理.
Nano-rod-like TiO2 powder was prepared by the solvent-thermal process at 80 100 ℃, using caprylic acid as solvent and Ti（OC4 H4） as inorganic precursor. The samples were characterized by X-ray diffraction and high resolution transmission electron microscopy. The results show that the TiO2 nano-rod like powder has a narrow size distribution of 3-4 nm in diameter and 10 20 nm in length. The TiO2 nano-rod is oriented lengthwise along the c-axis of the anatase crystal structure. The mechanism of the formation of TiO2 nano-rod like powder is also discussed.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2005年第12期1531-1534,共4页
Journal of The Chinese Ceramic Society
基金
天津市重点基础研究(33802311)资助项目。~~
关键词
二氧化钛
纳米棒
溶剂热法
低温
titania
nano rods
solvent-thermal process
low temperature
