Jigsaw Puzzle Inspired Patterning of Gas Diffusion Layers for Enhanced Water Management in Polymer Electrolyte Fuel Cells

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dc.authorid0000-0001-9563-867X
dc.authorid0000-0001-7803-7477
dc.authorid0000-0002-3174-9087
dc.authorid0000-0002-6738-6820
dc.contributor.authorCan, Enes Muhammet
dc.contributor.authorNishihara, Masamichi
dc.contributor.authorSasaki, Kazunari
dc.contributor.authorLyth, Stephen Matthew
dc.date.accessioned2026-02-08T15:14:44Z
dc.date.available2026-02-08T15:14:44Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractUnder high current density operation, water generation at the cathode of polymer electrolyte fuel cells (PEFCs) floods the electrode, resulting in severe mass transport limitation and an associated voltage drop. Water management is thus of crucial importance in improving the overall performance of fuel cell systems. Gas diffusion layers (GDLs) with independent pathways for either gaseous oxygen or liquid water transport present a potential solution to this issue. Here a novel, simple, and scalable method is presented for inducing patterned hydrophobicity into GDLs. Hydrophilic GDLs are prepared by immersion of commercial hydrophobic GDLs in hydrogen peroxide. Circular disks are then punched from these using a precision die-cutter. Meanwhile, an array of corresponding holes is punched into conventional hydrophobic GDLs. The hydrophilic disks are then pressed into the holes of the hydrophobic GDL and held in place via friction locking, analogous to completing a jigsaw puzzle. This Jigsaw Puzzle Inspired Patterning (JPIP) technique creates precisely patterned hydrophilic domains to act as dedicated water channels, with separate hydrophobic domains for unhindered gas transport. The use of JPIP GDLs dramatically improves fuel cell performance under high current density operation, with important implications for decarbonization via the hydrogen economy.
dc.description.sponsorshipNew Energy and Industrial Technology Development Organization (NEDO) [JPNP20003]
dc.description.sponsorshipThis paper is partially based on results obtained from a project,JPNP20003, commissioned by the New Energy and Industrial Technology Development Organization (NEDO).
dc.identifier.doi10.1002/advs.202507918
dc.identifier.issn2198-3844
dc.identifier.issue43
dc.identifier.pmid40899636
dc.identifier.scopus2-s2.0-105015155481
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/advs.202507918
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5404
dc.identifier.volume12
dc.identifier.wosWOS:001563847400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofAdvanced Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectfuel cell
dc.subjectgas diffusion layer
dc.subjecthydrophobicity
dc.subjectmicroporous layer
dc.subjectwater management
dc.titleJigsaw Puzzle Inspired Patterning of Gas Diffusion Layers for Enhanced Water Management in Polymer Electrolyte Fuel Cells
dc.typeArticle

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