Potentiometric C2H4-Selective Detection on Solid-State Sensors Activated with Bifunctional Catalytic Nanoparticles

This work presents a solid-state ionic-based device to selectively detect C2H4 in car exhaust gases. The sensor consists of 8YSZ as the electrolyte and two electrodes: Fe0.7Cr1.3O3/8YSZ LSM/8YSZ. main aim this is optimize catalytic behavior working electrode reduce cross-sensitivity toward CO H2O. Several catalyst nanoparticles were infiltrated tailor adsorption electrochemical oxidation properties while diminishing conversion other gas components such CO. metal catalysts selected, taking into account both redox properties. Infiltration Ti or Al, followed by second infiltration Ni, enabled selective detection with low H2O moist environment. Further insight potentiometric sensing achieved impedance analysis electrodes activated bifunctional catalysts.