Preparation of nanometer-sized SnO2 by the fusion method

Nano-sized SnO2 particles were prepared by the fusion of SnCl2·2H2O with sodium nitrate. X-ray diffraction and TEM were used to study the samples. According to XRD and TEM results, the average particle size/crystal sizes of SnO2 increase from 2.9 nm/2.5 nm to 8.6 nm/8.4 nm. The experiments reveal that the effects of synthesis temperature and synthesis time on the crystalline size are significant but the influence of reaction mixture composition on the particle size is rather small. Nano-sized SnO2 with advisable crystalline size can be obtained by the control of reaction mixture composition, synthesis temperature and synthesis time.