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Hydrogen sensing performance of TiO2 nanotubes at room temperature

Jongyun Moon, Ilkka Tuokko, Arho Suominen, Aulis Tuominen, Dongseok Oh, Hong Kim, Hydrogen sensing performance of TiO2 nanotubes at room temperature. In: 2010.

Abstract:

We report the hydrogen sensing properties of a sensor using TiO2 nanotube arrays. The TiO2 nanotube arrays were fabricated by anodization on titanium foil, in an electrolyte containing 0.5 wt% hydrofluoric acid mixed with water, the electric potential being 15V. TiO2 nanotube arrays were annealed at 600 Celsius for 1 h. The sensors were equipped with platinum electrodes. These two were connected with a metal wire using silver paste. The measurements of the sensor’s electrical resistance were performed in NTP. The hydrogen sensor using TiO2 nanotube arrays shows a linear sensitivity with various hydrogen concentrations. After repeating exposure to hydrogen at room temperature, the sensor’s resistance indicated a stable recovery to its initial resistance. The reproducibility of this exam is reliable.

BibTeX entry:

@INPROCEEDINGS{pMoTuSuTuOhKi10a,
  title = {Hydrogen sensing performance of TiO2 nanotubes at room temperature},
  author = {Moon, Jongyun and Tuokko, Ilkka and Suominen, Arho and Tuominen, Aulis and Oh, Dongseok and Kim, Hong},
  year = {2010},
}

Belongs to TUCS Research Unit(s): TUCS Productization Laboratory

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