Spin-coated thin films of SiO 2 -WO 3 composites for detection of sub-ppm NO 2

Xusheng Wang, Go Sakai, Kengo Shimanoe, Norio Miura, Noboru Yamazoe

研究成果: ジャーナルへの寄稿記事

65 引用 (Scopus)

抄録

Thin films of SiO 2 -WO 3 composites with various SiO 2 contents (0-20 wt%) were prepared by means of sol-gel method. The grain size of WO 3 decreased with increasing SiO 2 content, resulting in an increase in NO 2 sensitivity. On the other hand, the response transient to NO 2 was brought to be the quickest at 5% SiO 2 . The thin film of SiO 2 (5%)-WO 3 was far more sensitive to NO 2 than the thin film or sintered block of pure WO 3 . It could detect dilute NO 2 (0.1-2 ppm) in air at 350°C sensitively and fairly selectively. The NO 2 sensing characteristics were stable over the whole test period of 10 days.

元の言語英語
ページ(範囲)141-146
ページ数6
ジャーナルSensors and Actuators, B: Chemical
45
発行部数2
DOI
出版物ステータス出版済み - 12 1 1997

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Thin films
composite materials
Composite materials
thin films
transient response
Transient analysis
Sol-gel process
grain size
gels
sensitivity
air
Air

All Science Journal Classification (ASJC) codes

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

これを引用

Spin-coated thin films of SiO 2 -WO 3 composites for detection of sub-ppm NO 2 . / Wang, Xusheng; Sakai, Go; Shimanoe, Kengo; Miura, Norio; Yamazoe, Noboru.

:: Sensors and Actuators, B: Chemical, 巻 45, 番号 2, 01.12.1997, p. 141-146.

研究成果: ジャーナルへの寄稿記事

Wang, Xusheng ; Sakai, Go ; Shimanoe, Kengo ; Miura, Norio ; Yamazoe, Noboru. / Spin-coated thin films of SiO 2 -WO 3 composites for detection of sub-ppm NO 2 :: Sensors and Actuators, B: Chemical. 1997 ; 巻 45, 番号 2. pp. 141-146.
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