Abstract: In-doped tin oxide powders were prepared by a chemical coprecipitation process using tin tetrachloride, indium trichloride and ammonia as raw materials. The properties of SnO_2-based powders doped with In were studied systematically by X-ray diffraction (XRD) and Zeta potential analyzer. The results showed Zeta potential of In-doped SnO_2 powders is the lowest when the fraction of In-doped is 2 mol;. Compared with the pure SnO_2, the presence of the dopant alters slightly the crystal cell parameter of SnO_2 and increases significantly its crystal cell volume.

Key words: In-doped tin oxide powders were prepared by a chemical coprecipitation process using tin tetrachloride, indium trichloride and ammonia as raw materials. The properties of SnO_2-based powders doped with In were studied systematically by X-ray diffraction (XRD) and Zeta potential analyzer. The results showed Zeta potential of In-doped SnO_2 powders is the lowest when the fraction of In-doped is 2 mol;. Compared with the pure SnO_2, the presence of the dopant alters slightly the crystal cell parameter of SnO_2 and increases significantly its crystal cell volume.