04365nam 2200997z- 450 991056648110332120220506(CKB)5680000000037569(oapen)https://directory.doabooks.org/handle/20.500.12854/81127(oapen)doab81127(EXLCZ)99568000000003756920202205d2022 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierProton Exchange Membrane Fuel Cells (PEMFCs)BaselMDPI - Multidisciplinary Digital Publishing Institute20221 online resource (214 p.)3-0365-1544-5 3-0365-1543-7 The proton exchange membrane fuel cell is an electrochemical energy conversion device, which transforms a fuel such as hydrogen and an oxidant such as oxygen in ambient air into electricity with heat and water byproducts. The device is more efficient than an internal combustion engine because reactants are directly converted into energy through a one-step electrochemical reaction. Fuel cells combined with water electrolyzers, which electrochemically split water into hydrogen and oxygen using renewable energy sources such as solar, mitigate global warming concerns with reduced carbon dioxide emissions. This collection of papers covers recent advancements in fuel cell technology aimed at reducing cost, improving performance, and extending durability, which are perceived as crucial for a successful commercialization. Almost all key materials, as well as their integration into a cell, are discussed: the bus plates that collect the electrical current, the gas diffusion medium that distributes the reactants over catalysts promoting faster reactions, and the membrane separating oxygen and hydrogen gases and closing the electrical circuit by transporting protons. Fuel cell operation below the freezing point of water and with impure reactant streams, which impacts durability, is also discussed.Proton Exchange Membrane Fuel Cells Industrial chemistry and chemical engineeringbicsscTechnology: general issuesbicsscasymmetric &ampautomotivecarbon-freecatalyst layercatalyst loadingcathodecathode catalyst layercomposite membranescomputational fuel cell dynamicsconductivity limitationcontaminationcurrent collectordead-ended anode (DEA) modediffusion limitationdurabilityelectrolyserselectrolyteFreudenbergfuel cellsfuel impuritiesgraphene thin filmI/C ratioionomer thin filmISO concentrationisothermal water fill testsmembrane electrode assembly (MEA)modulenitrogen dioxideoxygen evolutionoxygen reductionoxygen reduction reaction kineticsoxygen transport resistancePEMPEM fuel cellPEM water electorolyzerPEMFCsperformanceplatinum electrodeplatinum ionomer interfacepolymer electrolyte fuel cellporous structureproton exchange membrane fuel cellproton exchange membrane fuel cellsrecoveryresponse surface methodSGL 29BCshut-down and start-up processsubzero cold-startssymmetric GDMultralow-loaded anode catalyst layerIndustrial chemistry and chemical engineeringTechnology: general issuesSt-Pierre Jeanedt1319339Du ShangfengedtSt-Pierre JeanothDu ShangfengothBOOK9910566481103321Proton Exchange Membrane Fuel Cells (PEMFCs)3033799UNINA