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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/8629


    Title: Gas diffusion layer for proton exchange membrane fuel cells-A review
    Authors: Cindrella, L.;Kannan, A.M.;Lin, J.F.;Saminathan, K.;Ho, Y.;Lin, C.W.;Wertz, J.
    Contributors: Department of Biotechnology
    Keywords: Capillarity;Cell membranes;Diffusion in gases;Gas permeability;Gases;Hydrophobicity;Ionization of liquids;Porosity;Proton exchange membrane fuel cells (PEMFC);Protons;Public key cryptography;Transport properties;Bibliometric analysis;Characteristic properties;Counter-current flow;Critical component;Current status;Energy source;Exponential growth;Functional properties;Future directions;Gas diffusion layer;Gas diffusion layers;Key parameters;Membrane electrode assemblies;PEM fuel cell;Power sources;Service conditions;Structural parts;Support structures
    Date: 2009-10
    Issue Date: 2010-04-07 13:17:55 (UTC+0)
    Publisher: Asia University
    Abstract: Gas diffusion layer (GDL) is one of the critical components acting both as the functional as well as the support structure for membrane-electrode assembly in the proton exchange membrane fuel cell (PEMFC). The role of the GDL is very significant in the H<inf>2</inf>/air PEM fuel cell to make it commercially viable. A bibliometric analysis of the publications on the GDLs since 1992 shows a total of 400+ publications (>140 papers in the Journal of Power Sources alone) and reveals an exponential growth due to reasons that PEMFC promises a lot of potential as the future energy source for varied applications and hence its vital component GDL requires due innovative analysis and research. This paper is an attempt to pool together the published work on the GDLs and also to review the essential properties of the GDLs, the method of achieving each one of them, their characterization and the current status and future directions. The optimization of the functional properties of the GDLs is possible only by understanding the role of its key parameters such as structure, porosity, hydrophobicity, hydrophilicity, gas permeability, transport properties, water management and the surface morphology. This paper discusses them in detail to provide an insight into the structural parts that make the GDLs and also the processes that occur in the GDLs under service conditions and the characteristic properties. The required balance in the properties of the GDLs to facilitate the counter current flow of the gas and water is highlighted through its characteristics. © 2009 Elsevier B.V. All rights reserved.
    Relation: Journal of Power Source Monograph title:XIth Polish Conference on Fast Ionic Conductors 2008 194(1):146-160
    Appears in Collections:[生物科技學系] 期刊論文

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