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dc.contributor.authorOzden, Adnan
dc.contributor.authorShahgaldi, Samaneh
dc.contributor.authorLi, Xianguo
dc.contributor.authorHamdullahpur, Feridun 14:13:02 (GMT) 14:13:02 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractWater management is a critical issue for proton exchange membrane (PEM) fuel cells, and the use of a microporous layer (MPL) substantially improves the PEM fuel cell performance, reliability and durability through improved water management. In this study, graphene, technically a yet-to-be-developed category of material, is investigated as a potential MPL material, due to its high electrical and thermal conductivity. MPLs made of graphene (G-MPL) have been fabricated and assessed through morphological, microstructural, physical, and electrochemical characterizations and performance testing in a single scaled-up cell. Comparison is also made with MPLs made of a conventional material, Vulcan (V-MPL). The results show that the G-MPL has a unique morphology composed of horizontally packaged graphene flakes that improves water management, in-plane electrical conductivity (up to 2 times), catalyst activity, and platinum (Pt) utilization (up to 10%). The cell with the G-MPL has a better performance than the cell with the V-MPL under both fully (100% RH) and partially (40% RH) humidified conditions, with the peak power densities of 0.98 W cm−2 and 0.60 W cm−2, respectively – these peak power densities are about 7% and 43% higher than those obtained for the cell with the V-MPL at 100% and 40% RH, respectively.en
dc.description.sponsorshipOntario-China Research and Innovation Fund (OCRIF Round 3) Natural Sciences and Engineering Research Council of Canada (NSERC) via a Discovery Granten
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectGas diffusion layeren
dc.subjectGraphene-based microporous layeren
dc.subjectMicroporous layeren
dc.subjectProton exchange membrane fuel cellen
dc.subjectWater managementen
dc.titleA graphene-based microporous layer for proton exchange membrane fuel cells: Characterization and performance comparisonen
dcterms.bibliographicCitationOzden, A., Shahgaldi, S., Li, X., & Hamdullahpur, F. (2018). A graphene-based microporous layer for proton exchange membrane fuel cells: Characterization and performance comparison. Renewable Energy, 126, 485–494.
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen

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