Degradation processes in hydrogen-air fuel cell as a function of the operating conditions and composition of membrane-electrode assemblies

摘要

The optimal composition of membrane-electrode assemblies and operating conditions of hydrogen-air fuel cells, which provide a high efficiency and stability of catalytically active cathode layers and the fuel cell as a whole are determined for commercial monoplatinum electrocatalysts on the highly dispersed carbon support containing 60-70 wt % Pt. The degradation processes in the Pt/C catalysts are studied by a complex of electrochemical methods and the methods of structural analysis.