The study of nanocrystalline SnO2 (n-SnO2) and SiO2-doped SnO2 (n-Si-SnO2)
samples prepared by the sol-gel process showed that SiO2 doping can effecti
vely restrained the growth of nanocrystalline SnO2 grains, thus improving t
hermal stability of the materials.