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无机材料学报

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精细结构SnO2纳米球的制备与表征

张元广1; 陈友存1; 陈乾旺2   

  1. 1. 安庆师范学院化学系, 安庆 246011; 2. 中国科技大学材料科学与工程系, 合肥 230026
  • 收稿日期:2002-07-08 修回日期:2002-08-12 出版日期:2003-01-20 网络出版日期:2003-01-20

Preparation and Characterization of SnO2 Nanospheres with Fine Structure

ZHANG Yuan-Guang1; CHEN You-Cun1; CHEN Qian-Wang2   

  1. 1.Department of Chemistry; Anqing Normal Colledge; Anqing 246011; China; 2.Department of Materials Science & Engineering; University of Science & Technology of China; Hefei 230026; China
  • Received:2002-07-08 Revised:2002-08-12 Published:2003-01-20 Online:2003-01-20

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摘要： 以SnCl4·5H2O为主要原料,用溶剂热技术在油酸体系中成功地合成了具有精细结构的SnO2纳米球.X射线衍射(XRD)和选区电子衍射(SAED)结果表明,制备出的SnO2微晶具有良好的结晶性;透射电镜(TEM)结果表明,得到的产物中含有尺寸约为50-80nm的SnO2纳米球,放大的17EM照片进一步揭示了此纳米球含有粒度为2-6nm超细粒子的精细结构.这种结构趋向于高的比表面积,适合于气敏探测器方面的应用.

关键词: 油酸, 制备, 纳米晶, 二氧化锡

Abstract: SnO2 nanospheres with fine structure were prepared with SnCl4·5H2O as raw materials by a
solvothermal process. The X-ray diffraction pattern and selected area electron diffraction show that the as-prepared SnO2 crystallites
are well crystallized. Transmission electron microscope micrographs show that the prepared product contains nanospheres with sizes of 50-80nm.
Magnified TEM image further reveals that the nanospheres display fine structure consisting of 2-6nm ultrafine particles. This structure tends to have high
specific surface area and favorable for the application in gas-sensitive detection.

Key words: oleic acid, preparation, nanocrystalline, tin oxide

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