Ammonia gas sensor using thick film of Au-loaded tungsten trioxide

Masami Ando, Takashi Tsuchida, Seiichi Suto, Takahiro Suzuki, Chiaki Nakayama, Norio Miura, Noboru Yamazoe

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Thick films of Au-loaded WO3 mixed with glass frit were prepared on an alumina substrate by the printing method, and influences of film thickness, Au-loading and operating temperature on the NH3 sensing characteristics were investigated. With an increase in film thickness and Au-loading, the maximum sensitivity (Km) increased, while the temperature for maximum sensitivity (Tm) decreased. An optimum film was revealed to be the 4.0 mass % Au-loaded one of a 250 μm-thickness for the optimum operating temperature of 450°C. The sensor proved excellent NH3 sensing characteristics in gas sensitivity, response transient, resistance to humidity and long-term stability when subjected to heat cleaning once a day during its operation.

Original languageEnglish
Pages (from-to)1112-1116
Number of pages5
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume104
Issue number12
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Chemical sensors
operating temperature
Ammonia
Thick films
thick films
Tungsten
ammonia
tungsten
film thickness
frit
Film thickness
sensitivity
sensors
transient response
gases
printing
cleaning
humidity
aluminum oxides
Aluminum Oxide

Keywords

  • Ammonia
  • Au
  • Gas sensor
  • Thick film
  • Tungsten trioxide

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Ando, M., Tsuchida, T., Suto, S., Suzuki, T., Nakayama, C., Miura, N., & Yamazoe, N. (1996). Ammonia gas sensor using thick film of Au-loaded tungsten trioxide. Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 104(12), 1112-1116.

Ammonia gas sensor using thick film of Au-loaded tungsten trioxide. / Ando, Masami; Tsuchida, Takashi; Suto, Seiichi; Suzuki, Takahiro; Nakayama, Chiaki; Miura, Norio; Yamazoe, Noboru.

In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 104, No. 12, 1996, p. 1112-1116.

Research output: Contribution to journalArticle

Ando, M, Tsuchida, T, Suto, S, Suzuki, T, Nakayama, C, Miura, N & Yamazoe, N 1996, 'Ammonia gas sensor using thick film of Au-loaded tungsten trioxide', Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, vol. 104, no. 12, pp. 1112-1116.
Ando, Masami ; Tsuchida, Takashi ; Suto, Seiichi ; Suzuki, Takahiro ; Nakayama, Chiaki ; Miura, Norio ; Yamazoe, Noboru. / Ammonia gas sensor using thick film of Au-loaded tungsten trioxide. In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan. 1996 ; Vol. 104, No. 12. pp. 1112-1116.
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