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Formation and growth mechanism of tungsten oxide microtubules

  • Shiliang Wang
  • , Yuehui He
  • , Baiyun Huang
  • , Jin Zou
  • , C. T. Liu
  • , P. K. Liaw

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Tungsten oxide microtubules, arrayed in a radial flower-like structure, were synthesized by simply using W powders reacting with Ni(NO3)2 · 6H2O at a elevated temperature. The formed microtubules, with lengths more than 100 μm and outer diameters of 1-5 μm, have irregular open ends, showing clear grooves along the growth direction on the tubule surface. A novel aggregation mechanism based on chemical-vapor-deposit process was proposed to describe the growth process of the synthesized tubules, and the possible mechanism for the arrangement of the radial flower-like morphology was discussed. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)350-355
JournalChemical Physics Letters
Volume427
Issue number4-6
DOIs
Publication statusPublished - 31 Aug 2006
Externally publishedYes

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