Influence of Pt paste and the firing temperature of screen-printed electrodes on the NO detection by pulsed polarization
<p>Symmetrical Pt<span class="inline-formula">|</span>YSZ<span class="inline-formula">|</span>Pt sensors were produced by screen printing with frit-containing and fritless Pt pastes and fired at 950, 1100, and 1300 <span class="inl...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-09-01
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| Series: | Journal of Sensors and Sensor Systems |
| Online Access: | https://jsss.copernicus.org/articles/9/293/2020/jsss-9-293-2020.pdf |
| Summary: | <p>Symmetrical Pt<span class="inline-formula">|</span>YSZ<span class="inline-formula">|</span>Pt sensors were
produced by screen printing with frit-containing and fritless Pt pastes and
fired at 950, 1100, and 1300 <span class="inline-formula"><sup>∘</sup></span>C. Subsequently, the sensors were
operated by pulsed polarization, and the NO sensitivity was investigated. The
sensitivity of the sensors with fritless pastes was found to be
significantly higher. The influence of the firing temperature was low in
contrast to the influence of the paste. The low NO sensitivity of the
frit-containing electrodes was attributed to a blocking effect that probably
occurs at the triple-phase boundaries. Therefore, the oxygen transport
through the sensor is inhibited, which, however, seems to be necessary for
the sensor effect.</p> |
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| ISSN: | 2194-8771 2194-878X |