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Sb掺杂SnO_2(ATO)纳米晶的水热合成和导电性能
引用本文:张建荣,高濂.Sb掺杂SnO_2(ATO)纳米晶的水热合成和导电性能[J].化学学报,2003,61(10):1679-1681.
作者姓名:张建荣  高濂
作者单位: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
基金项目:国家重点基础研究发展规划(No.G1999064506)资助项目.
摘    要:以Sn和SbI_3为主要原料,在120-170 ℃温和水热条件下合成了具有导电能力 的Sb掺杂SnO_2(ATO)透明导电纳米粉体,运用FT-IR, XRD, BET, TEM等手段对 粉体的形成过程进行了分析表征。实验结果表明,所合成的纳米ATO粉体均为四方 锡石结构,无其他杂相存在,晶粒大小在4-7nm之间,粉体呈单分散状态。比表面 积在137-184m~2·g~(-1)之间,随水热温度的升高,晶粒长大,比表面积下降,粉 体导电性能提高。该方法对于其他透明导电氧化物纳米粉体的合成具有借鉴意义。

关 键 词:氧化锡  掺杂  水热反应  纳米相材料  导电性  傅里叶变换  红外分光光度法  X射线衍射分析  透射电子显微术  晶粒
修稿时间:2003年4月1日

Hydrothermal Synthesis of Antimony-doped TinOxide (ATO) Nanoparticles and Electrical Property
Institution:Shanghai Institute of Ceramics, Chinese Academy of Sciences
Abstract:Antimony-doped tin oxide (ATO) nanopai-ticles were synthesized by the hydrothennal method from the starting materials granulated tin and SbI_3, the hydrothermal reaction took place at 120 ~ 170 ℃ for 20 h. The crystallining process and the particles were characterized by means of FT-IR, XRD, BET and TEM. XRD shows that all the diffraction patterns agree well with the bulk SnO_2 cassiterite structure. The crystallite sizes of the ATO particles were about 4~7 nm. The specific surface areas were about 137 ~ 182 m~2·g~(-1). With the increase of hydrothermal temperature the crystallite size increased, the specific surface area decreased and the conductivity increased. TEM shows that the nanoparticles are monodispersed. This method can be used to synthesize other transparent conductive oxides.
Keywords:tin oxide  doping  hydrothermal synthesis  nanopar ticle  
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