Proton exchange membrane fuel cells (PEMFCs) are an exciting clean energy technology for power delivery for a range of devices from automotive applications to portable digital equipment, and as a component in renewable energy delivery systems. Proton exchange membrane fuel cells (PEMFC) are a sustainable means of power generation through the electrochemical conversion of hydrogen, especially in portable, stationary, and automotive applications. The traditional PEMFC utilizes a solid polymer electrolyte membrane based on a hydrated perfluorinated sulfonic acid (Teflon-based) between two porous electrodes comprising thin layers of catalyst coated on porous gas-diffusion layers. The membrane is both an excellent proton conductor of protons and an electronic insulator. This Special Issue focuses on all PEMFC scientific and technological aspects that decrease cost and increase performance and durability. It covers new membrane development for high temperature operation, as well as the most recent progresses in advanced electrocatalysts, from the synthesis and characterization to the evaluation of corrosion resistance and catalytic activity, including novel characterization methods, mathematical models, and accelerated stress tests to gain additional insight into degradation mechanisms. Innovations in other cell components, including gas diffusion layers, cells, stacks, and system designs, will also be included.
Keywords: Proton exchange membrane fuel cell; Nanoparticle technologies; Anode; Cathode; Platinum; Proton conductivity; Surface area; Nanoparticles; Polymer membranes; Durability; Electrocatalysts.