NDLI: Zirconia-based planar NO$_{2}$ sensor using ultrathin NiO or laminated NiO

Content Provider	Springer Nature Link
Author	Plashnitsa, Vladimir V. Ueda, Taro Elumalai, Perumal Kawaguchi, Toshikazu Miura, rio
Copyright Year	2007
Abstract	The nanostructured thin NiO films with the thicknesses of 30–180 nm were examined as a sensing electrode (SE) for the planar mixed-potential-type yttria-stabilized zirconia (YSZ)-based NO$_{2}$ sensor. The sensing characteristics were examined in the temperature range of 600–800 °C under the wet condition (5 vol.% water vapor). Among the NiO-SEs tested, the 60 nm-thick NiO-SE sintered at 1,000 °C was found to give the highest NO$_{2}$ sensitivity in the NO$_{2}$ concentration range of 50–400 ppm accompanying with fast response/recovery at the operating temperatures of 600–700 °C. The high NO$_{2}$ sensitivity was attributed to the high catalytic activity for both electrochemical reactions of O$_{2}$ and NO$_{2}$ at the interface of NiO-SE/YSZ. The ultrathin gold layer with the thickness of about 60 nm was additionally formed on the 60 nm-thick NiO-SE to fabricate the laminated-type (60 nm NiO/60 nm Au)-SE. It was demonstrated that the use of this laminated (NiO–Au)-SE improved both the sensitivity and the selectivity to NO$_{2}$.
Starting Page	15
Ending Page	25
Page Count	11
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	14
Issue Number	1
e-ISSN	18620760
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-09-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	NO$_{x}$ sensor Mixed potential Stabilized zirconia NiO Au Thin film Electrical Power Generation and Transmission Renewable Energy Sources Condensed Matter Physical Chemistry Materials Science Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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