Ceria-zirconia mixed oxide prepared through a microwave-assisted synthesis for CO2 sensing in low power work function sensors
Materials Today: Proceedings, 2016•Elsevier
In this work the sensitivity towards CO 2 of pure ceria, zirconia and a Ce-Zr mixed oxide
were tested in a Kelvin Probe setup. The nanocrystalline powders were obtained by
microwave-assisted synthesis. A high work function response in humid air was observed for
all compositions, the mixed oxide exhibiting the best sensing characteristics. Based on the
results presented here, we propose nanocrystalline Ce 0.8 Zr 0.2 O 2 as a CO 2 sensitive
layer for work function based gas sensors.
were tested in a Kelvin Probe setup. The nanocrystalline powders were obtained by
microwave-assisted synthesis. A high work function response in humid air was observed for
all compositions, the mixed oxide exhibiting the best sensing characteristics. Based on the
results presented here, we propose nanocrystalline Ce 0.8 Zr 0.2 O 2 as a CO 2 sensitive
layer for work function based gas sensors.
Abstract
In this work the sensitivity towards CO2 of pure ceria, zirconia and a Ce-Zr mixed oxide were tested in a Kelvin Probe setup. The nanocrystalline powders were obtained by microwave-assisted synthesis. A high work function response in humid air was observed for all compositions, the mixed oxide exhibiting the best sensing characteristics. Based on the results presented here, we propose nanocrystalline Ce0.8Zr0.2O2 as a CO2 sensitive layer for work function based gas sensors.
Elsevier
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