Integration of ceramic catalyst on micro-thermoelectric gas sensor

Woosuck Shin, Maiko Nishibori, Kazuki Tajima, Lionel F. Houlet, Yeongsoo Choi, Noriya Izu, Norimitsu Murayama, Ichiro Matsubara

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

An integration technique of dispensing ceramic paste containing the particles of Pt loaded on alumina (Pt/alumina) on thin membrane of micro-thermoelectric hydrogen sensor (μ-THS) has been developed. By changing the concentration of the catalyst particles in the paste, the viscosity of the paste was controlled to prepare the thick film catalyst of different thicknesses. The thickness of the catalyst was closely related to both the gas sensing performance and its temperature dependency of the μ-THS device. The sensor device with the moderate concentration of the Pt/alumina catalyst particle in the paste, 3.8% (v/v), showed the voltage signal of ca. 10 mV for the gas mixture of hydrogen/air, 1% (v/v) H2 in air at catalyst temperature of 100 °C. The performances of the μ-THS with ceramic thick film catalyst and Pt thin film catalyst have been compared, and the influences of CO gas on their sensing performance have been investigated using in situ FT-IR test method. The better gas oxidation performance of the ceramic thick film than that of Pt thin film could remove out the adsorbed CO on the catalyst surface.

Original languageEnglish
Pages (from-to)283-291
Number of pages9
JournalSensors and Actuators, B: Chemical
Volume118
Issue number1-2
DOIs
Publication statusPublished - Oct 25 2006
Externally publishedYes

Fingerprint

Chemical sensors
ceramics
catalysts
Catalysts
sensors
Ointments
gases
Thick films
thick films
Aluminum Oxide
Gases
Carbon Monoxide
Hydrogen
Alumina
aluminum oxides
Thin films
air
Sensors
hydrogen
thin films

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Shin, W., Nishibori, M., Tajima, K., Houlet, L. F., Choi, Y., Izu, N., ... Matsubara, I. (2006). Integration of ceramic catalyst on micro-thermoelectric gas sensor. Sensors and Actuators, B: Chemical, 118(1-2), 283-291. https://doi.org/10.1016/j.snb.2006.04.033

Integration of ceramic catalyst on micro-thermoelectric gas sensor. / Shin, Woosuck; Nishibori, Maiko; Tajima, Kazuki; Houlet, Lionel F.; Choi, Yeongsoo; Izu, Noriya; Murayama, Norimitsu; Matsubara, Ichiro.

In: Sensors and Actuators, B: Chemical, Vol. 118, No. 1-2, 25.10.2006, p. 283-291.

Research output: Contribution to journalArticle

Shin, W, Nishibori, M, Tajima, K, Houlet, LF, Choi, Y, Izu, N, Murayama, N & Matsubara, I 2006, 'Integration of ceramic catalyst on micro-thermoelectric gas sensor', Sensors and Actuators, B: Chemical, vol. 118, no. 1-2, pp. 283-291. https://doi.org/10.1016/j.snb.2006.04.033
Shin, Woosuck ; Nishibori, Maiko ; Tajima, Kazuki ; Houlet, Lionel F. ; Choi, Yeongsoo ; Izu, Noriya ; Murayama, Norimitsu ; Matsubara, Ichiro. / Integration of ceramic catalyst on micro-thermoelectric gas sensor. In: Sensors and Actuators, B: Chemical. 2006 ; Vol. 118, No. 1-2. pp. 283-291.
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