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Piles à combustible à membrane échangeuse de protons --- Proton exchange membrane fuel cells

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"The book provides a systematic and profound account of scientific challenges in fuel cell research. The introductory chapters bring readers who have a scientific background, but who are not experts in electrochemical energy conversion, up to date on the urgency and implications of the global energy challenge, the prospects of electrochemical energy conversion technologies, and the thermodynamic and electrochemical principles underlying the operation of polymer electrolyte fuel cells. The book then presents the scientific challenges in fuel cell research as a systematic account of distinct components, length scales, physicochemical processes, and scientific disciplines. The main part of the book focuses on theory and molecular modeling. Theoretical tools and approaches, applied to fuel cell research, are presented in a self-contained manner. Chapters are arranged by different fuel cell materials and components, and sections advance through the hierarchy of scales, starting from molecular-level processes in proton conducting media or electro catalytic systems and ending with performance issues at the device level, including electrochemical performance, water management, durability and analysis of failure mechanisms. Throughout, the book gives numerous examples of formidable scientific challenges as well as of tools to facilitate materials design and development of diagnostic methods. It reveals reserves for performance improvements and uncovers misapprehensions in scientific understanding that have misled or may continue to mislead technological development. An indispensable resource for scientifically minded and practically oriented researchers, this book helps industry leaders to appreciate the contributions of fundamental research, and leaders of fundamental research to appreciate the needs of industry"-- "Preface More than 175 years have passed since the discovery and first demonstrations of the fuel cell principle by Christian Friedrich Schoenbein and Sir William Grove. However, in spite of many years of research, fuel cells still are somewhat exotic and seemingly unaffordable power sources. The main reasons are materials cost and a lack of fundamental knowledge of fuel cell operation. In this book, we discuss low-temperature fuel cells with a polymer electrolyte membrane (PEM). Two main representatives of the family of low-T cells are hydrogen-fed polymer electrolyte fuel cells (PEFCs) and liquid-fed direct methanol fuel cells (DMFCs). Though the major part of this book is devoted to materials and performance modeling of PEFCs, some features of DMFCs will also be discussed due to a great potential of these cells for small-scale mobile applications. Noting that PEFCs are highly efficient and environmentally friendly power sources is a commonplace. The only chemical product of the fuel cell reaction is water; the exhaust contains neither carbon dioxide nor toxic oxides, water's evil twin products from the combustion of fossil fuels. In contrast to internal combustion engines (ICEs), fuel cells produce no noise. Another advantage of fuel cell systems is simplicity; they are much simpler than ICEs. When opening the cowling of an ICE car, a lot of pipes are seen. In an FC system, numerous pipes are invisible, as they are of a nanoscale size"

Proton exchange membrane fuel cells. --- Piles à combustible à membrane échangeuse de protons. --- Piles à combustible à membrane échangeuse de protons.

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Proton exchange membrane (PEM) fuel cells, including H2/O2 (air) and methanol/O2 (air) fuel cells, are promising clean energy converting devices with high efficiency and low to zero emissions. Such power sources can be used in transportation, stationary, portable, and micro power applications. The key components of these fuel cells are catalysts and catalyst layers. PEM Fuel Cell Electrocatalysts and Catalyst Layers covers all of the fundamental aspects and applications of this field. The opening chapters introduce the essential topics on electrochemical theory and fuel cell catalysis, including: electrode thermodynamics, kinetics, and mass transfer; electrode/electrolyte interface electrocatalysis; electrocatalytic reactions, including O2 reduction and H2/CH3OH oxidations; quantum chemistry simulations of catalyst activity; catalyst contamination; spectroscopic methods for catalysis research; porous gas electrode theory; and catalyst layers and modeling. Later chapters investigate the synthesis, characterization, and activity validation of PEM fuel cell catalysts. All fuel cell related catalysts are reviewed, including noble and non-noble catalysts and their preparation/performance. Further chapters describe in detail the integration of the electrocatalyst/catalyst layers into the fuel cell, and their performance validation, including: catalyst layer structure function and optimization, catalyst degradation and diagnosis, and strategies to mitigate the failure modes. PEM Fuel Cell Electrocatalysts and Catalyst Layers provides a comprehensive, in-depth survey of PEM fuel cell electrocatalysts and catalyst layers, presented by internationally renowned fuel cell scientists. Researchers and engineers in the fuel cell industry will find this book a valuable resource, as will students of electrochemical engineering and catalyst synthesis.

materiaalkennis --- stroomverdeling --- energie-economie --- katalyse --- biotechnologie --- biochemie --- stroomvoorziening --- Electricity --- hernieuwbare energie --- Electrochemistry --- Enzymology --- Engineering sciences. Technology --- fysicochemie --- Materials sciences --- ingenieurswetenschappen --- elektrochemie --- BIT (biochemische ingenieurstechnieken) --- Chemical thermodynamics --- Biotechnology --- Relation between energy and economics --- Proton exchange membrane fuel cells --- Electrocatalysis. --- Catalysts. --- Piles à combustible à membrane échangeuse de protons --- Electrocatalyse --- Catalyseurs --- EPUB-LIV-FT LIVINGEN SPRINGER-B --- Electrocatalysis --- Catalysts --- Production of electric energy or. --- Chemistry. --- Catalysis. --- Materials. --- Chemical engineering. --- Renewable energy sources. --- Power Electronics, Electrical Machines and Networks. --- Electrochemistry. --- Materials Science, general. --- Industrial Chemistry/Chemical Engineering. --- Renewable and Green Energy. --- Alternate energy sources --- Alternative energy sources --- Energy sources, Renewable --- Sustainable energy sources --- Power resources --- Renewable natural resources --- Agriculture and energy --- Chemistry, Industrial --- Engineering, Chemical --- Industrial chemistry --- Engineering --- Chemistry, Technical --- Metallurgy --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Activation (Chemistry) --- Chemistry, Physical and theoretical --- Surface chemistry --- Physical sciences --- Materials --- Power electronics. --- Materials science. --- Renewable energy resources. --- Material science --- Electronics, Power --- Electric power --- Electronics --- Proton exchange membrane fuel cells.