Electrochemically Promoted Catalysis: The Case of Ethanol Oxidation over Pt

摘要: Abstract Ethanol oxidation was investigated over polycrystalline Pt films deposited on 8 mol% Y2O3-stabilized-ZrO2 (YSZ) in the temperature range of 300–350°C. It found that electrochemical supply oxygen anions (O2−) to catalyst results significant changes both rate ethanol consumption and yield acetaldehyde. Electrochemical O2− induces an enhancement reaction typically 103–104 times larger than Faradaic almost seven-fold increase In applied currents, it catalytic activation energies acetaldehyde formation can be lowered by 70 80%, respectively, with respect regular (open-circuit) values. The observed behavior is discussed explained basis theory NEMCA.