Synthesis of nanocrystalline SnO_2 powder at 100 deg C

摘要

A simple gel to crystal conversion route has been followed for the preparation of nanocrystalline SnO_2 at 80-100 deg C under refluxing conditions. Freshly prepared stannic hydroxide gel is allowed to crystallize under refluxing and stirring conditions for 4-6 h. Formation of nano crystallites of SnO_2 is confirmed by X-ray diffraction (XRD) study. Transmission electron microscopic (TEM) investigations revealed that the average particle size is 30 nm for these powders.