Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"diffusion media"”.
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Investigation of Novel Gas Diffusion Media for Application in Pem Fuel Cell Ribbon Assemblies
… fuel cell ribbon architecture relies on the gas diffusion layer (GDL) to conduct electrical current in-plane to adjacent cells or collector terminals. The potential advantages of the fuel cell ribbon architecture with respect to conventional fuel cell stacks include reduced manufacturing costs, …
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Interfacial Transport Phenomena of the Non-Wetting Phase in Porous Media: Applied to Polymer Electrolyte Fuel Cell Gas Diffusion Media
… modeling of water transport in porous media lead to a sudden, sharp discontinuity in liquid saturation at the interface between two porous media of different properties. The goal of this study was to determine if this discontinuity is a physical phenomenon that truly occurs or a …
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Experimental Studies on the Mechanical Durability of Proton Exchange Membranes
… nonuniform thickness and compressibility of gas diffusion media which can lead to concentrated compressive stresses in the PEM in the through-plane direction. Fatigue and creep to leak tests using multi-cell pressure-loaded blister fixtures were conducted to obtain the lifetimes of PEMs before …
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Microscopic and spectroscopic characterization of fuel cell catalyst layer materials and interfaces
… of a series of roll-to-roll coated gas diffusion electrodes comparing them to spray coated electrodes. Cathode catalyst layer surface properties, including surface roughness and surface texture features, as well as elemental composition (ionomer content relative to Pt) at the top …
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Biopharmaceutic and Pharmacokinetic Evaluation of Hesperidin and Hesperetin for Ocular Delivery
… of the cornea and components of the diffusion media play a major role in the passive asymmetric transport. Results from the intravitreal kinetic studies of hesperidin, hesperetin and glucosyl-hesperidin (a water soluble derivative of hesperidin), following intravitreal injection, …