Synthesis and characterization of high-surface-area Ag_2O-doped SnO_2 nanomaterial

摘要

Nanosized tin dioxide-based powders containing silver and palladium oxides have been prepared by coprecipitation reaction. XRD, TEM, and XPS analysis were carried out for investigation of crystalline structure and surface morphology. The best reactive conditions were determined, such as the concentration of the reactants, pH value, surfactants, reaction temperature, and time. The material obtained is nanocrystalline, having a particle size in the range of 5.21-7.42 nm. Effect of doped-Ag_2Oon the crystal size of the nanoparticles and the influence of the presence of a second dopant (Pd) on the Ag_2O/SnO_2 matrix was discussed.