Synthesis of vanadium-doped SnO_2 nanoparticles by chemical co-precipitation method

摘要

The vanadium-doped SnO_2 nanoparticle was synthesized by the co-precipitation reaction and subsequent calcination from the vanadium(III) chloride and tin(IV) chloride. The crystal size, pore size distribution, micrograph and properties of the nanocrystalline powders were examined by differential thermal analysis (DTA), thermogravimetric analysis (TGA), X-ray diffraction (XRD), desorption isotherm (Barrett-Joyner-Halenda (BJH) method) and transmission electron microscopy (TEM). Thermal treatment of the precipitate powder at 600 ℃ led to the formation of V-SnO_2 nanoparticle of ～ 10 nm in crystal size. Most of the pores in the nanoparticle are about 5-15 nm in diameter. Effect of doped vanadium on the crystal size of the nanoparticle was discussed.