Optimisation of electrophoretic deposition parameters for gas diffusion electrodes in high temperature polymer electrolyte membrane fuel cells

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dc.contributor.authorFelix, Cecil
dc.contributor.authorJao, Ting-Chu
dc.contributor.authorPasupathi, Sivakumar
dc.contributor.authorPollet, Bruno G.
dc.date.accessioned2018-01-10T08:20:25Z
dc.date.available2018-01-10T08:20:25Z
dc.date.issued2013
dc.description.abstractElectrophoretic deposition (EPD) method was used to fabricate gas diffusion electrodes (GDEs) for high temperature polymer electrolyte membrane fuel cells (HT PEMFC). Parameters related to the catalyst suspension and the EPD process were studied. Optimum suspension conditions are obtained when the catalyst particles are coated with NafionĀ® ionomer and the pH is adjusted to an alkaline range of about 8 e10. These suspensions yield good stability with sufficient conductivity to form highly porous catalyst layers on top of the gas diffusion layers (GDLs). GDEs were fabricated by applying various electric field strengths of which 100 V cm-1 yields the best membrane electrode assembly (MEA) performance. Compared to an MEA fabricated by the traditional hand sprayed (HS) method, the EPD MEA shows superior performance with a peak power increase of about 73% at similar platinum (Pt) loadings. Electrochemical Impedance Spectroscopy (EIS) analysis shows lower charge transfer resistance for the MEA fabricated via the EPD method compared to the HS MEA. The EPD GDE exhibits a greater total pore area (22.46 m2 g-1) compared to the HS GDE (13.43 m2 g-1) as well as better dispersion of the Pt particles within the catalyst layer (CL).en_US
dc.description.accreditationWeb of Science
dc.identifier.citationFelix, C. et al. (2013). Optimisation of electrophoretic deposition parameters for gas diffusion electrodes in high temperature polymer electrolyte membrane fuel cells. Journal of Power Sources, 243: 40 ā€“ 47en_US
dc.identifier.issn0378-7753
dc.identifier.urihttp://dx.doi.org/10.1016/j.jpowsour.2013.06.006
dc.identifier.urihttp://hdl.handle.net/10566/3369
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherElsevieren_US
dc.rightsThis is the author-version of the article published online at: http://dx.doi.org/10.1016/j.jpowsour.2013.06.006
dc.status.ispeerreviewedTRUE
dc.subjectElectrophoretic depositionen_US
dc.subjectHigh temperature polymer electrolyteen_US
dc.subjectMembrane fuel cellen_US
dc.subjectGas diffusion electrodesen_US
dc.subjectMembrane electrode assemblyen_US
dc.subjectZeta potentialen_US
dc.titleOptimisation of electrophoretic deposition parameters for gas diffusion electrodes in high temperature polymer electrolyte membrane fuel cellsen_US
dc.typeArticleen_US

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