Nano-TiO2 whiskers were prepared through controlled hydrolysis of titanium
butoxide. HRTEM, IR, TGA and DTA methods were used to characterize the stru
cture of the nano-TiO2 whiskers. It was found that the nano-TiO2 whiskers o
btained were anatase and grew selectively in the [001] direction with a dia
meter of about 4nm and a length of about 40nm. Acetic acid played an import
ant role in the oriented growth of nano-TiO2 whiskers. (C) 1999 Acta Metall
urgica Inc.