高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (9): 1544.

• 论文 • 上一篇    下一篇

纳米晶Sb掺杂SnO2(ATO)粉体的合成与表征

张建荣, 高濂   

  1. 中国科学院上海硅酸盐研究所, 高性能陶瓷与超微结构国家重点实验室, 上海 200050
  • 收稿日期:2002-10-22 出版日期:2003-09-24 发布日期:2003-09-24
  • 通讯作者: 高镰(1945年出生),男,博士,研究员.从事纳米材料和高温结构陶瓷研究.E-mail:liangaoc@online.sh.cn E-mail:liangaoc@online.sh.cn
  • 基金资助:

    国家重点基础研究发展规划项目(批准号:C1999064506)资助

Synthesis and Characterization of Sb Doped SnO2(ATO) Nanoparticles

ZHANG Jian-Rong, GAO Lian   

  1. State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2002-10-22 Online:2003-09-24 Published:2003-09-24

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摘要： 以Sn粉和Sb2O3为原料.采用共沉淀法制备了纳米ATO粉.TG-DSC及FTIR结果表明.450℃以前前驱体已失去全部水分.并完全转化为氧化物.XRD测量结果表明.所得ATO粉具有四方金红石结构.500℃焙烧后粉体的粒径为12nm.随着焙烧温度的升高.粉体的粒径增加.TEM测定结果表明,粉体的分散性很好.团聚很少.粉体的烧结性能良好,950℃时烧结5h即达到理论密度的97.3％.用霍尔系数法测定粉体的导电行为.表明该粉体具有良好的导电性能.

关键词: 纳米粉体, SnO2, 掺杂

Abstract: Sb doped SnO2(ATO) nanoparticles were synthesized by the coprecipitation method with Sn and Sb2O3as the raw materials. TG-DSC curves showed that the precursors lose weight completely before 450℃; FTIRspectra showed that the precursors convert to SnO2at 450℃; X-ray powder diffraction patterns of the powders indicated the same rutile lattice structure known from bulk SnO2.The size of the particles calcinated at 500 ℃ was about 12 nm. The size of the nanocrystalline powders increased with the calcination temperature increasing. TEM showed that the particles are weakly agglomerated. The powders showed better sintering behavior and the density is about 97. 3% when being sintered at 950 ℃ for 5 h. The resistivity determined by the Hall system indicated that the particles are greatly conductive.

Key words: Nanoparticles, SnO2, Doping

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