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Modeling the effect of low Pt loading cathode catalyst layer in polymer electrolyte fuel cells. Part II: Parametric analysis

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Mecánica de Fluidoses
dc.contributor.authorSánchez Ramos, Arturo
dc.contributor.authorGostick, Jeff T.
dc.contributor.authorGarcía-Salaberri, Pablo A.
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2023-04-12T13:32:07Z
dc.date.available2023-04-12T13:32:07Z
dc.date.issued2022-07
dc.description.abstractA parametric analysis is presented using a previously validated 1D model for a cathode catalyst layer (CL). The results show that maximum power density at low Pt loading can be maximized with relatively thin CLs (thickness - 2 micrómetros) featuring a high carbon volume fraction (low ionomer-to-carbon weight ratio, I/C) compared to high Pt loading CLs. The shift of the optimal carbon volume fraction (I/C ratio) is caused by the dominant role of the local oxygen transport resistance at low Pt loading, which is lowered by a reduction of the average ionomer film thickness (better ionomer distribution among carbon particles). In contrast, at high Pt loading, higher porosity and pore radius (lower carbon volume fraction) is beneficial due to an increase of bulk effective diffusivity despite thickening of ionomer films. Moreover, the results show that performance at low Pt loading is significantly improved with increasing mass-specific activity. The effect of average saturation and ionomer permeability on performance at low Pt loading is lower compared to dry CL composition and mass-specific activity.en
dc.description.sponsorshipThis work was supported by projects EIN2020-112247 and PID2019-106740RB-I00 (Spanish Agencia Estatal de Investigación).en
dc.format.extent16
dc.identifier.bibliographicCitationSánchez-Ramos, A., Gostick, J. T., & García-Salaberri, P. A. (2022). Modeling the Effect of Low Pt Loading Cathode Catalyst Layer in Polymer Electrolyte Fuel Cells. Part II: Parametric Analysis. Journal of The Electrochemical Society, 169(7), 074503.en
dc.identifier.doihttps://doi.org/10.1149/1945-7111/ac811d
dc.identifier.issn0013-4651
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue7, 074503
dc.identifier.publicationlastpage16
dc.identifier.publicationtitleJournal of The Electrochemical Societyen
dc.identifier.publicationvolume169
dc.identifier.urihttps://hdl.handle.net/10016/37041
dc.identifier.uxxiAR/0000031400
dc.language.isoeng
dc.publisherIOP Scienceen
dc.relation.projectIDGobierno de España. PID2019-106740RB-I00es
dc.relation.projectIDGobierno de España. EIN2020-112247es
dc.rights© 2022 The Author(s).en
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaEnergías Renovableses
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaMatemáticases
dc.subject.ecienciaMaterialesen
dc.subject.ecienciaQuímicaen
dc.subject.otherCatalyst layeren
dc.subject.otherMicrostructureen
dc.subject.otherOxygen transporten
dc.subject.otherPolymer electrolyte fuel cellen
dc.subject.otherPt loadingen
dc.titleModeling the effect of low Pt loading cathode catalyst layer in polymer electrolyte fuel cells. Part II: Parametric analysisen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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