Publication detail

Ferric oxide nanoparticle-functionalized tungsten oxide nanoneedles and their gas sensing properties

VALLEJOS VARGAS, S. GRÁCIA, I. FIGUERAS, E. PRÁŠEK, J. SEDLÁČEK, J. PYTLÍČEK, Z. CANÉ, C.

Original Title

Ferric oxide nanoparticle-functionalized tungsten oxide nanoneedles and their gas sensing properties

Type

conference paper

Language

English

Original Abstract

The aerosol assisted chemical vapor deposition of Fe2O3 nanoparticle-tunctionalized tungsten oxide nanoneedles and their gas sensing properties are presented here. Material analysis demonstrates the incorporation of 4 to 15 nm Fe2O3 nanoparticles at the surface of the tungsten oxide nanoneedles. Gas sensing tests show improved tungsten oxide sensitivity, to toluene, ethanol and hydrogen, with the highest sensitivity (six-fold) to toluene, due to its fonctionalization with Fe2O3. This enhancement is nearly similar to the enhancement obtained when fonctionalizing tungsten oxide with platinum, suggesting that the sensing performance of tungsten oxide could be improved to a same extent using second-phase nanoparticles of metal oxides, which are less expensive and more abundant than precious metals such as Pt.

Keywords

Functionalization, ferric oxide, platinum, AACVD; Gas sensor; Tungsten oxide

Authors

VALLEJOS VARGAS, S.; GRÁCIA, I.; FIGUERAS, E.; PRÁŠEK, J.; SEDLÁČEK, J.; PYTLÍČEK, Z.; CANÉ, C.

RIV year

2015

Released

11. 9. 2015

Publisher

Elsevier

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

120

Number

1

State

Kingdom of the Netherlands

Pages from

443

Pages to

446

Pages count

4

URL

http://www.sciencedirect.com/science/article/pii/S1877705815023279

Full text in the Digital Library

http://hdl.handle.net/11012/201064

BibTex

@inproceedings{BUT117969,
  author="Stella {Vallejos Vargas} and Isabel {Grácia} and Eduard {Figueras} and Jan {Prášek} and Jiří {Sedláček} and Zdeněk {Pytlíček} and Carles {Cané}",
  title="Ferric oxide nanoparticle-functionalized tungsten oxide nanoneedles and their gas sensing properties",
  booktitle="Eurosensors 2015 conference proceedings",
  year="2015",
  journal="Procedia Engineering",
  volume="120",
  number="1",
  pages="443--446",
  publisher="Elsevier",
  doi="10.1016/j.proeng.2015.08.664",
  issn="1877-7058",
  url="http://www.sciencedirect.com/science/article/pii/S1877705815023279"
}