Formation of CdSe Nanorod-assembled Microtubes in an Ethanolamine–PEG Solution

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  • Hai Fan
    Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of   China
  • Yuanguang Zhang
    Department of Chemistry, Anqing Normal College
  • Jianbo Liang
    Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of   China
  • Baojuan Xi
    Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of   China
  • Linbao Luo
    Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of   China
  • Yitai Qian
    Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry, University of Science and Technology of   China

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Abstract

<jats:title>Abstract</jats:title> <jats:p>A large number of CdSe nanorod-assembled microtubes are prepared via a hydrothermal method in an ethanolamine–PEG solution. The tubes with inner diameters of 900 nm and lengths of 5–50 μm are composed of well-aligned nanorods around 300-nm long. It was found that both the solvent ethanolamine and surfactant PEG-20000 play a key role in the formation of nanorod-assembled microtubes. Ethanolamine as a mild reducing agent was used to reduce SeO2 to produce Se2−. The optimal conditions to produce CdSe microtubes are that the volume ratio of ethanolamine to water is 1:4 and that the quantity of PEG is 3.0 g. The possible formation mechanism of CdSe microtubes is also discussed.</jats:p>

Journal

  • Chemistry Letters

    Chemistry Letters 35 (11), 1212-1213, 2006-09-30

    Oxford University Press (OUP)

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