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dc.contributor.authorBaik, Jungshiken_US
dc.date.accessioned2014-03-14T20:43:03Z
dc.date.available2014-03-14T20:43:03Z
dc.date.issued2006-07-19en_US
dc.identifier.otheretd-08092006-205716en_US
dc.identifier.urihttp://hdl.handle.net/10919/34438
dc.description.abstractThe catalyst layer of a proton exchange membrane (PEM) fuel cell is a mixture of polymer, carbon, and platinum. The characteristics of the catalyst layer play a critical role in determining the performance of the PEM fuel cell. This research investigates the role of catalyst layer composition using a Central Composite Design (CCD) experiment with two factors which are Nafion content and carbon loading while the platinum catalyst surface area is held constant. For each catalyst layer composition, polarization curves are measured to evaluate cell performance at common operating conditions, Electrochemical Impedance Spectroscopy (EIS), and Cyclic Voltammetry (CV) are then applied to investigate the cause of the observed variations in performance. The results show that both Nafion and carbon content significantly affect MEA performance. The ohmic resistance and active catalyst area of the cell do not correlate with catalyst layer composition, and observed variations in the cell resistance and active catalyst area produced changes in performance that were not significant relative to compositions of catalyst layers.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartThesis.pdfen_US
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPEM fuel cellen_US
dc.subjectCatalyst layeren_US
dc.titleExperimental Investigation of the Effect of Composition on the Performance and Characteristics of PEM Fuel Cell Catalyst Layersen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.committeechairEllis, Michael W.en_US
dc.contributor.committeemembervon Spakovsky, Michael R.en_US
dc.contributor.committeememberNelson, Douglas J.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08092006-205716/en_US
dc.date.sdate2006-08-09en_US
dc.date.rdate2006-10-30
dc.date.adate2006-10-30en_US


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