Polymer Electrolyte Membrane Fuel Cells: Fabrication and Characterization

This chapter is devoted to an introduction of fabrication and characterization of key materials and components of PEMFC including proton exchange membranes, electrocatalysts, and membrane electrode assemblies. The characterization by both ex situ and in situ techniques is primarily focused on electrochemical but also including other properties such as permeability and mechnical strength. Durability of electrolyte membranes and catalysts is assessed by accelerated stress tests. Efforts are made to illustrate the processes and protocols with examples. .