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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (22): 2611-2617. 上一篇    下一篇

研究论文

氧化铟八面体、纳米带、锯齿状纳米线和纳米链的可控合成

董红星，杨合情*，尹文艳，杨文玉，王林芳   

  1. (陕西师范大学化学与材料科学学院 大分子科学陕西省重点实验室 西安 710062)
  • 投稿日期:2007-04-23 修回日期:2007-06-08 发布日期:2007-11-28
  • 通讯作者: 杨合情

Controlled Synthesis of Octahedrons, Nanobelts, Dentate Nanowires and Nanocrystal Chains of In2O3

DONG Hong-Xing; YANG He-Qing*; YIN Wen-Yan; YANG Wen-Yu; WANG Lin-Fang   

  1. (Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062)
  • Received:2007-04-23 Revised:2007-06-08 Published:2007-11-28
  • Contact: YANG He-Qing

PDF

1324

被引次数

42

在N2/H2O混合气流中将硅片上金覆盖的金属铟颗粒加热到800 ℃制备出了不同形貌的In2O3纳米结构, 在距铟源不同距离处依次得到In2O3的八面体、纳米带、锯齿状纳米线和纳米链. 采用拉曼光谱、扫描电镜、X射线衍射和透射电镜对产物进行了表征分析. 结果表明, 八面体、纳米带、锯齿状纳米线和纳米链均为立方相单晶结构的In2O3. 基于气-固和气-液-固生长机理详细分析了八面体、纳米带、锯齿状纳米线和纳米链的生长过程, 提出了不同形貌In2O3纳米结构的生长模式.

关键词: In2O3, 八面体, 锯齿状纳米线, 纳米链, 可控合成

Indium oxide nanostructures with different morphologies have been synthesized on the surface of Si substrates by heating indium grains coated with an Au layer on the Si foils at 800 ℃ under the flow of a gas mixture of N2/H2O. Otahedrons, nanobelts, dentate nanowires, and nanocrystal chains of In2O3 were grown in the different regions of the Si substrates. The as-synthesized products were characterized by means of Raman spectra, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results showed that the octahedrons, nanobelts, dentate nanowires and nanocrystal chains of In2O3 are single crystalline phase with the body-center cubic structure. The growth process of octahedrons, nanobelts, dentate nanowires and nanocrystal chains of In2O3 was analyzed in detail according to vapor-solid and vapor-liquid-solid mechanisms, and the growth models of these nanostructures with different morphologies were proposed.

Key words: In2O3; octahedrons, dentate nanowires, nanocrystal chains, controlled synthesis