Hexagonal WO3 films with carbon nanotubes for sensing applications

C. Balázsi, Radu Ionescu, Katarína Sedlácková

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this work, nanocrystalline hexagonal tungsten oxide was prepared by acidic precipitation from sodium tungstate solution. TEM studies of nanopowders showed that the average size of the hexagonal nanoparticles is 30-50 nm. Novel nanocomposites were prepared by embedding a low amount of gold decorated carbon nanotubes into the hex-WO3 matrix. The addition of MWCNTs lowered the temperature range of sensitivity of hex-WO3 nanocomposites to NO2 hazardous gas. The sensitivity of hex - WO3 with Au-decorated MWCNTs to NO2 is at the temperature range between 25°C and 250°C.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalMaterials Science Forum
Volume589
DOIs
Publication statusPublished - 2008

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Nanocomposites
nanocomposites
carbon nanotubes
tungsten oxides
tungstates
Gold
embedding
Tungsten
Gases
Sodium
sodium
gold
Nanoparticles
Transmission electron microscopy
nanoparticles
Temperature
transmission electron microscopy
Oxides

Keywords

  • Hex-WO
  • NO
  • Sensor
  • TEM

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Hexagonal WO3 films with carbon nanotubes for sensing applications. / Balázsi, C.; Ionescu, Radu; Sedlácková, Katarína.

In: Materials Science Forum, Vol. 589, 2008, p. 67-71.

Research output: Contribution to journalArticle

Balázsi, C. ; Ionescu, Radu ; Sedlácková, Katarína. / Hexagonal WO3 films with carbon nanotubes for sensing applications. In: Materials Science Forum. 2008 ; Vol. 589. pp. 67-71.
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