Počet záznamů: 1
Characterization of gas diffusion layer transport properties by limiting current approach
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SYSNO ASEP 0557107 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Characterization of gas diffusion layer transport properties by limiting current approach Tvůrce(i) 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)Celkový počet autorů 7 Číslo článku 139755 Zdroj.dok. Electrochimica acta. - : Elsevier - ISSN 0013-4686
Roč. 404, FEB 1 (2022)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Liming current measurements ; Gas diffusion layer ; Relative gas diffusivities ; Water management ; Fuel cell performance Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Způsob publikování Omezený přístup Institucionální podpora USMH-B - RVO:67985891 UT WOS 000779964400011 EID SCOPUS 85121598998 DOI 10.1016/j.electacta.2021.139755 Anotace The 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. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2023 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0013468621020387
Počet záznamů: 1