Robust thermoelectric hydrogen sensors with ceramic catalyst

Woosuck Shin, Maiko Nishibori, Lionel F. Houlet, Kazuki Tajima, Toshio Itoh, Noriya Izu, Ichiro Matsubara

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Micro-thermoelectric hydrogen sensor (μ-THS) is one of the promising candidates for hydrogen leak alarm system because of its simple structure, its unique and reliable working principle, catalytic combustion and thermoelectric (from heat to electric) conversion, and its sensing performance for wide-range of hydrogen concentrations. Catalyst is of great importance for the reliability in gas sensors. The integration of the catalyst is the key technology to make a sensor of high efficiency and high durability such as long-term stability. By controlling the catalyst preparation, the size, the thickness of the ceramic catalyst and the dispersion of Pt in the catalyst could be controlled. These are closely related not only to sensitivity but also to the long-term stability of the catalyst. We have monitored the performance of the μ-THS with ceramic catalyst over 3 months, to investigate the relation between the device preparation and the stability of the sensor.

Original languageEnglish
Title of host publication16th World Hydrogen Energy Conference 2006, WHEC 2006
Number of pages9
Publication statusPublished - 2006
Event16th World Hydrogen Energy Conference 2006, WHEC 2006 - Lyon, France
Duration: 2006 Jun 132006 Jun 16

Publication series

Name16th World Hydrogen Energy Conference 2006, WHEC 2006


Conference16th World Hydrogen Energy Conference 2006, WHEC 2006


  • Ceramic catalyst
  • Long-term stability
  • Sensor
  • Thermoelectric
  • Wide-range


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