Publication detail

Selective Hydrogen Detection with TiO2 Nanofilm via the Porous-Alumina-Assisted Anodizing of Titanium Layers

VAZQUEZ, R. GISPERT-GUIRADO, F. LLOBET, E. MOZALEV, A.

Original Title

Selective Hydrogen Detection with TiO2 Nanofilm via the Porous-Alumina-Assisted Anodizing of Titanium Layers

Type

conference paper

Language

English

Original Abstract

Nanostructured metal oxides grown via porous-alumina (PA)-assisted anodization of sputtered refractory metals are of increasing interest as active layers for gas microsensors. Although nanostructured titanium oxide is particularly attractive, PA-assisted anodic formation of titanium oxide nanostructures remains a challenge because of their chemical instability caused by substantially mixing titania with alumina during film growth. Here we advance the approach and employ a unique combination of electrical and electrolytic conditions to achieve the PA-assisted formation of a stable amorphous TiO2 nanofilm on dielectric substrates, followed by high-temperature annealing to attain crystallization and enhance semiconductor properties of the film. A laboratory-scale microsensor employing the TiO2 nanofilm as active layer shows good sensitivity and selectivity to hydrogen against ethanol and carbon monoxide, which is in demand for proton-exchange fuel-cell applications.

Keywords

nanostructured metal oxides, anodizing, porous alumina, titanium oxide, hydrogen sensor

Authors

VAZQUEZ, R.; GISPERT-GUIRADO, F.; LLOBET, E.; MOZALEV, A.

RIV year

2014

Released

25. 12. 2014

Publisher

IEEE

Location

IEEE Service Center 445 Hoes Lane Piscataway, NJ 08855-1331 USA

ISBN

978-1-4799-0161-6

Book

Proceedings of IEEE sensors 2014

Edition number

1

Pages from

807

Pages to

810

Pages count

4

BibTex

@inproceedings{BUT111212,
  author="Rosa Maria {Vazquez} and Francesc {Gispert-Guirado} and Eduard {Llobet} and Alexander {Mozalev}",
  title="Selective Hydrogen Detection with TiO2 Nanofilm via the Porous-Alumina-Assisted Anodizing of Titanium Layers",
  booktitle="Proceedings of IEEE sensors 2014",
  year="2014",
  number="1",
  pages="807--810",
  publisher="IEEE",
  address="IEEE Service Center
445 Hoes Lane
Piscataway, NJ 08855-1331 USA",
  isbn="978-1-4799-0161-6"
}