Effect of polymer electrolyte crystallinity and carbon electrode morphology on charge transport and its fluctuations in electrochemical gas sensors

The proposal focuses on a systematic investigation of the effect of polymer electrolyte crystallinity and carbon electrode morphology on charge transport and its fluctuations in electrochemical gas sensors from the perspective of physical and functional properties of selected gas sensors. Main contribution and originality of the project consist in analysis and evaluation of fluctuations of charge transport through electrode/electrolyte interfaces of various morphologies besides evaluation based on classical approaches. Stochastic behavior becomes dominant characteristic of electrochemical systems as the size of its active interfaces reduces. Thus, project goal is not to suppress the current fluctuations originating from chemical environment, but is to gain additional information about chemical processes being involved at electrode/electrolyte interface to enhance sensitivity and selectivity of sensor.