Zirconia potentiometric oxygen sensor activation using NEMCA
| Autor: | Robert Jantzt, Pavel Shuk |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Engineering lcsh:T Control and Systems Engineering lcsh:Technology (General) Potentiometric titration Inorganic chemistry lcsh:T1-995 Cubic zirconia Electrical and Electronic Engineering zirconia potentiometric oxygen sensor impedance response re-activation NEMCA effect lcsh:Technology Oxygen sensor |
| Zdroj: | International Journal on Smart Sensing and Intelligent Systems, Vol 7, Iss 5 (2014) |
| ISSN: | 1178-5608 |
| DOI: | 10.21307/ijssis-2019-036 |
| Popis: | NEMCA known for the increasing the catalytic activity/selectivity of the gas exposed electrodes was investigated for the potentiometric zirconia oxygen sensor activation. Electrochemical promotion of O2-sensors with Pt-cermet electrodes aged in the field was significant with up to 5 times in the impedance reduction. Stability test on the NEMCA activated °2 -sensors was showing just a minor impedance increase. Sensor response time was reduced by NEMCA effect by ~5-10% with up to 3 times signal noise reduction on the aged O2-sensors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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