A facile route to tungsten oxide nanomaterials with controlled morphology and structure--颗粒学报PARTICUOLOGY

Lin, H.-C., Su, C.-Y., Yang, Z.-K., Lin, C.-K., & Ou, K.-L. (2011). A facile route to tungsten oxide nanomaterials with controlled morphology and structure. Particuology, 9(5), 517–521. https://doi.org/10.1016/j.partic.2011.01.006

A facile route to tungsten oxide nanomaterials with controlled morphology and structure

Hsuan-Ching Lin ^{a b}, Cherng-Yuh Su ^b *, Zhong-Kun Yang ^b, Chung-Kwei Lin ^c, Keng-Liang Ou ^d

a Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan, China
b Institute of Manufacturing Engineering, National Taipei University of Technology, Taipei 106, Taiwan, China
c Department of Materials Science and Engineering, Feng-Chia University, Taichung 407, Taiwan, China
d Department of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan, China

10.1016/j.partic.2011.01.006

Volume 9, Issue 5, October 2011, Pages 517-521

Received 31 October 2010, Revised 17 January 2011, Accepted 24 January 2011, Available online 8 September 2011.

E-mail: cysu@ntut.edu.tw

Highlights

Abstract

Various tungsten oxide-based nanomaterials have been prepared by a modified plasma arc gas condensation technique without the use of catalysts or substrates. These products could be obtained by controlling the processing parameters during experiment. All the as-obtained samples were characterized by field emission gun scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction techniques. The results revealed that as-prepared tungsten oxide nanomaterials (WO₃, W₁₉O₅₅ and W₅O₁₄) with different phases and morphologies could be obtained by decreasing the oxygen content in the chamber. In addition, W₁₈O₄₉ nanotubes and nanorod bundles were fabricated by controlling the Ar/O₂ ratio under He plasma gas. W₁₈O₄₉/TiO₂ core–shell nanoparticles were also prepared by evaporating a dual target. The experimental results showed that the present technique is unique and feasible for the fabrication of nanomaterials for use in different applications.

Graphical abstract

Keywords

Plasma arc gas condensation; Titanium oxide; Tungsten oxide; Nanoparticle; Nanorods

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