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Characterization of gas diffusion layer transport properties by limiting current approach

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    SYSNO ASEP0557107
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCharacterization of gas diffusion layer transport properties by limiting current approach
    Author(s) Yakovlev, Y.V. (CZ)
    Rodriguez, M. (CZ)
    Lobko, Y.V. (CZ)
    Vorokhta, Maryna (USMH-B) ORCID, SAI
    Kúš, P. (CZ)
    Matolínová, I. (CZ)
    Matolín, V. (CZ)
    Number of authors7
    Article number139755
    Source TitleElectrochimica acta. - : Elsevier - ISSN 0013-4686
    Roč. 404, FEB 1 (2022)
    Number of pages8 s.
    Languageeng - English
    CountryGB - United Kingdom
    KeywordsLiming current measurements ; Gas diffusion layer ; Relative gas diffusivities ; Water management ; Fuel cell performance
    Subject RIVCG - Electrochemistry
    OECD categoryElectrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
    Method of publishingLimited access
    Institutional supportUSMH-B - RVO:67985891
    UT WOS000779964400011
    EID SCOPUS85121598998
    DOI10.1016/j.electacta.2021.139755
    AnnotationThe high performance of hydrogen fuel cells requires an efficient transport of product/reactants in the porous electrodes. An important role in the transport processes plays a gas diffusion layer (GDL) a key part of the fuel cell electrode. In this work, we studied gas transport properties of commercially available GDLs using a limiting current technique. Average relative diffusivities of oxygen and hydrogen for different commercially available GDLs were measured in operating fuel cell. An elaborate analysis of oxygen and hydrogen transport provided important insights into gas diffusion performance and water saturation of GDL at different current densities. Water transport was found to be governed by the GDL thickness. Structural study of GDL by scanning electron microscopy and mercury intrusion porosimetry techniques was performed. Fuel cell performance of GDLs at different relative humidities was studied and analyzed in the framework of transport and structural properties.
    WorkplaceInstitute of Rock Structure and Mechanics
    ContactIva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216
    Year of Publishing2023
    Electronic addresshttps://www.sciencedirect.com/science/article/pii/S0013468621020387
Number of the records: 1  

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