| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 181415 | Electrochemistry Communications | 2008 | 4 Pages |
Abstract
A planar sensor was fabricated using a yttria-stabilized zirconia (YSZ) plate and laminated-oxide sensing electrode (SE) aiming for selective detection of NO2 at high temperature. The NO2 sensing characteristics as well as the cross-sensitivity to various gases were examined in the temperature range of 700–900 °C under the wet condition (5 vol.% H2O). It was found that the sensor attached with the laminated hetero-oxide layer (Cr2O3/NiO (+WO3)) could detect NO2 selectively at 895 °C. It was speculated that the additional oxide layer (Cr2O3) placed on the NiO (+WO3) layer acted as a catalyst for the oxidation of CO, hydrocarbons and NO, and then led to better NO2 selectivity.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Perumal Elumalai, Vladimir V. Plashnitsa, Taro Ueda, Norio Miura,