Answers are grounded in this paper and cite their sources.
Gas sensors at work: The mode of operation of metal-oxide gas sensors can be studied by simultaneous measurement of the sensor response, adsorbates, changes in the metal-oxide material, and gas-phase composition by operando Raman–FTIR spectroscopy. Depending on the gas environment and temperature, for EtOH sensing by In2O3, a correlation has been found between the sensor signal, presence of adsorbates, oxidation state of the sensor material, and intensity of surface hydroxy groups.
No takes yet. Share an insight, caveat, or question.
Sänze et al. (2013) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: