Thin films of gas sensitive materials based on the SrFeO2.5+x nonstoichiometric perovskite family were
deposited onto an interdigitated gold electrode construction device by room temperature pulsed
excimer laser deposition (RT-PLD). Two films sensors based on the SrFe1-yCoyO2.5+x oxides
perovskite family, with y=0.75 and 0.5 respectively, have been presented. Their ability to very quickly
respond to the presence of low concentrations of methanol makes them attractive for construction of
methanol sensing devices, as gases monitoring sensors for either environmental applications, or as
an automated feedback sensor for concentration measurement and control in a micro direct methanol
fuel cell (μ-DMFC) power supply.
Prof. Dr. Steve De Cliff
Department of Chemistry, Faculty of Sciences, University of Burundi, 2 Unesco Avenue, P.O.Box 1550, Bujumbura, Burundi.
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