Synthesis of tungsten oxide (WO3) nanorods using carbon nanotubes as templates by hot filament chemical vapor deposition
2005; Elsevier BV; Volume: 60; Issue: 6 Linguagem: Inglês
10.1016/j.matlet.2005.10.009
ISSN1873-4979
AutoresNagraj Shankar, Min-Feng Yu, S. P. Vanka, Nick Glumac,
Tópico(s)Diamond and Carbon-based Materials Research
ResumoSynthesis of tungsten oxide (WO3) nanorods using CNTs as templates under typical diamond growing conditions in a hot-filament chemical vapor deposition system is described. Tungsten oxide nanorods were grown on two types of CNT substrates, a Si [100] wafer with dispersed multiwalled CNT and a fresh-grown multiwalled CNT film. The templated growth resulted in an order of magnitude increase in surface area covered by the tungsten oxide compared to a planar Si [100] surface, which when combined with the flexibility of growing CNTs in various forms like pillars and sheets [K. Hata, D. N. Futaba, K. Mizuno, T. Namai, M. Yumura, S. Iijima, Science 306 (2004) 1362–1364.], can be effectively utilized in field emission, gas sensing and catalytic applications.
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