低温溶剂热法合成单分散氧化钛纳米棒  

SYNTHESIS OF SINGLE DISPERSING TiO_2 NANO-RODS BY SOLVENT-THERMAL PROCESS AT LOW TEMPERATURE

作　　者：刘晓新[1] 靳正国[1] 崔兰[2] 步绍静[1] 赵娟[1] 

机构地区：[1]先进陶瓷与加工技术教育部重点实验室,天津大学材料学院天津300072 [2]天津大学分析中心,天津300072

出　　处：《硅酸盐学报》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。~~

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.

关 键 词：二氧化钛 纳米棒 溶剂热法 低温 

分 类 号：O614.411[理学—无机化学]