SYNTHESIS OF SnO_2 NANOCRYSTALS BY SOLID STATE REACTION FOLLOWED BY CALCINATION  

作　　者：ShanminGao LiPang HongweiChe XiaopingZhou 

机构地区：[1]YantaiJialongNanoIndustryCo.,Ltd.,ResearchCenterofNano-coatingEngineeringofShandongProvince,Yantai265500,China [2]SchoolofChemistryandMaterialsScience,YantaiNormalUniversity,Yantai264025,China

出　　处：《China Particuology》2004年第4期177-181,共5页

摘　　要：Nanocrystalline SnO2 was synthesized by direct mixing and grinding of SnCl45H2O and NaOH at room temperature, followed by calcination at different temperatures for different times in air. Product samples were character-ized by X-ray diffraction and transmission electron microscope, revealing that the amorphous precursor SnO2 was transformed to crystals at 200 oC for 3 h, and that the average particle size increased upon raising the calcining tem-perature or prolonging the calcining time. The mechanism of the phase transformation of the products is discussed.Nanocrystalline SnO2 was synthesized by direct mixing and grinding of SnCl45H2O and NaOH at room temperature, followed by calcination at different temperatures for different times in air. Product samples were character-ized by X-ray diffraction and transmission electron microscope, revealing that the amorphous precursor SnO2 was transformed to crystals at 200 oC for 3 h, and that the average particle size increased upon raising the calcining tem-perature or prolonging the calcining time. The mechanism of the phase transformation of the products is discussed.

关 键 词：SNO2 nanocrystal SYNTHESIS solid state reaction CALCINE 

分 类 号：TB383[一般工业技术—材料科学与工程]