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Controllable preparation of WO.sub.3 nanorod arrays by hydrothermal method

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.tsf.2013.01.102 Byline: Feng Zheng, Mei Zhang, Min Guo Keywords: Tungsten oxide; Nanorod arrays; Hydrothermal method Abstract: WO.sub.3 nanorod arrays (WNRs) were synthesized on indium tin oxide conducting sub... Full description

Journal Title: Thin Solid Films May 1, 2013, Vol.534, p.45(9)
Main Author: Zheng, Feng
Other Authors: Zhang, Mei , Guo, Min
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Cengage Learning, Inc.
ID: ISSN: 0040-6090
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recordid: gale_ofa340203563
title: Controllable preparation of WO.sub.3 nanorod arrays by hydrothermal method
format: Article
creator:
  • Zheng, Feng
  • Zhang, Mei
  • Guo, Min
subjects:
  • Raman Spectroscopy -- Methods
  • Tungsten Compounds -- Methods
ispartof: Thin Solid Films, May 1, 2013, Vol.534, p.45(9)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.tsf.2013.01.102 Byline: Feng Zheng, Mei Zhang, Min Guo Keywords: Tungsten oxide; Nanorod arrays; Hydrothermal method Abstract: WO.sub.3 nanorod arrays (WNRs) were synthesized on indium tin oxide conducting substrates by hydrothermal method. The effects of preparing conditions such as the precursor solutions concentration (H.sup.+ and Na.sub.2WO.sub.4), the additive NaCl, growth temperature and reaction time on the morphologies of WNRs have been systematically investigated by scanning electron microscopy, X-ray diffraction, Raman spectrum and ultraviolet visible absorption spectrum. It is shown that the pH value of the precursor solutions plays an important role in determining the morphology of as-prepared WNRs, which leads to different band gap energies. The orientation, density, and crystallinity of WNRs can be controlled by changing the amount of additive NaCl, Na.sub.2WO.sub.4 concentration and reaction temperature, respectively. Moreover, the growth mechanism of the WNRs was also discussed. Article History: Received 9 July 2012; Revised 19 January 2013; Accepted 23 January 2013
language: English
source: Cengage Learning, Inc.
identifier: ISSN: 0040-6090
fulltext: fulltext
issn:
  • 0040-6090
  • 00406090
url: Link


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titleControllable preparation of WO.sub.3 nanorod arrays by hydrothermal method
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descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.tsf.2013.01.102 Byline: Feng Zheng, Mei Zhang, Min Guo Keywords: Tungsten oxide; Nanorod arrays; Hydrothermal method Abstract: WO.sub.3 nanorod arrays (WNRs) were synthesized on indium tin oxide conducting substrates by hydrothermal method. The effects of preparing conditions such as the precursor solutions concentration (H.sup.+ and Na.sub.2WO.sub.4), the additive NaCl, growth temperature and reaction time on the morphologies of WNRs have been systematically investigated by scanning electron microscopy, X-ray diffraction, Raman spectrum and ultraviolet visible absorption spectrum. It is shown that the pH value of the precursor solutions plays an important role in determining the morphology of as-prepared WNRs, which leads to different band gap energies. The orientation, density, and crystallinity of WNRs can be controlled by changing the amount of additive NaCl, Na.sub.2WO.sub.4 concentration and reaction temperature, respectively. Moreover, the growth mechanism of the WNRs was also discussed. Article History: Received 9 July 2012; Revised 19 January 2013; Accepted 23 January 2013
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.tsf.2013.01.102 Byline: Feng Zheng, Mei Zhang, Min Guo Keywords: Tungsten oxide; Nanorod arrays; Hydrothermal method Abstract: WO.sub.3 nanorod arrays (WNRs) were synthesized on indium tin oxide conducting substrates by hydrothermal method. The effects of preparing conditions such as the precursor solutions concentration (H.sup.+ and Na.sub.2WO.sub.4), the additive NaCl, growth temperature and reaction time on the morphologies of WNRs have been systematically investigated by scanning electron microscopy, X-ray diffraction, Raman spectrum and ultraviolet visible absorption spectrum. It is shown that the pH value of the precursor solutions plays an important role in determining the morphology of as-prepared WNRs, which leads to different band gap energies. The orientation, density, and crystallinity of WNRs can be controlled by changing the amount of additive NaCl, Na.sub.2WO.sub.4 concentration and reaction temperature, respectively. Moreover, the growth mechanism of the WNRs was also discussed. Article History: Received 9 July 2012; Revised 19 January 2013; Accepted 23 January 2013
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