Simple route for synthesis of tin dioxide nanorods based on improved solid state reactions

A synthesising method is reported with an enhanced solid state reaction to fabricate SnO2 nanorods. The structure and morphology of the SnO2 nanorods were characterised by X-ray diffraction and transmission electron microscopy. The results showed that the nanorods were rutile SnO2 with a diameter of ∼30 nm and length of several micrometres. It was found that chlorine salt was very important for controlling the grain size of nanoparticles and providing kinetic and ambulatory circumstance to induce oriented growth of SnO2 nanoparticles. The growth mechanism of the nanorods can be understood on the basis of oriented aggregation induced by polar forces.