PEM Fuel Cell Fundamentals.- Electrocatalytic Oxygen Reduction Reaction.- Electrocatalytic H2 Oxidation Reaction.- Electrocatalytic Oxidation of Methanol, Ethanol and Formic Acid.- Application of First Principles Methods in the Study of Fuel Cell Air-Cathode Electrocatalysis.- Catalyst Contamination in PEM Fuel Cells.- PEM Fuel Cell Catalyst Layers and MEAs.- Catalyst Layer Modeling: Structure, Properties and Performance.- Catalyst Synthesis Techniques.- Physical Characterization of Electrocatalysts.- Electrochemical Methods for Catalyst Activity Evaluation.- Combinatorial Methods for PEM Fuel Cell Electrocatalysts.- Platinum-based Alloy Catalysts for PEM Fuel Cells.- Nanotubes, Nanofibers and Nanowires as Supports for Catalysts.- Non-noble Electrocatalysts for the PEM Fuel Cell Oxygen Reduction Reaction.- CO-tolerant Catalysts.- Reversal-tolerant Catalyst Layers.- High-temperature PEM Fuel Cell Catalysts and Catalyst Layers.- Conventional Catalyst Ink, Catalyst Layer and MEA Preparation.- Spray-based and CVD Processes for Synthesis of Fuel Cell Catalysts and Thin Catalyst Layers.- Catalyst Layer/MEA Performance Evaluation.- Catalyst Layer Composition Optimization.- Catalyst Layer Degradation, Diagnosis and Failure Mitigation.