Metal-oxide gas sensors
We study the metal-oxide gas sensing mechanism by correlating the sensor response with spectroscopic changes. For that purpose the sensor response to the target gas is measured simultaneously with different in situ and operando spectroscopic techniques (IR, Raman, UV/Vis). By changing the feeding gas composition, the sensor temperature, and the sensor properties we elucidate their influence on the sensing mechanism. Recently, we coupled the measurement of the sensor response with operando Raman, UV-Vis and IR gas phase analysis in one experiment.
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