Publication:
Vulcan-supported pt electrocatalysts for PEMFCs prepared using supercritical carbon dioxide deposition

dc.contributor.coauthorBayrakceken, Ayse
dc.contributor.coauthorSmirnova, Alevtina
dc.contributor.coauthorKitkamthorn, Usanee
dc.contributor.coauthorAindow, Mark
dc.contributor.coauthorTuerker, Lemi
dc.contributor.coauthorEroglu, Inci
dc.contributor.departmentDepartment of Chemical and Biological Engineering
dc.contributor.kuauthorErkey, Can
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.date.accessioned2024-11-09T23:19:15Z
dc.date.issued2009
dc.description.abstractIn this study, supercritical carbon dioxide (scCO(2)) deposition was used to prepare vulcan-supported Pt (Pt/Vulcan) electrocatalysts for proton exchange membrane fuel cells (PEMFCs), and the effects of process variables on the properties of the electrocatalysts were investigated. The two different methods used to reduce the organometallic precursor were thermal reduction in nitrogen at atmospheric pressure and thermal reduction in scCO(2). In the former method, the maximum Pt loading achieved was 9%, and this was governed by the adsorption isotherm of the Pt precursor between the scCO(2) phase and the Vulcan phase. By using the latter method, higher Pt loadings of 15% and 35% could be achieved. The Pt/Vulcan catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and cyclic voltammetry (CV). The average particle sizes for Pt/Vulcan 9%, 15%, and 35% catalysts were 1.2, 1.3, and 2nm, respectively. Electrochemical surface areas obtained from CV data were found to vary with the Pt loading.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue44958
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume196
dc.identifier.doi10.1080/00986440802290110
dc.identifier.eissn1563-5201
dc.identifier.issn0098-6445
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-55149115901
dc.identifier.urihttps://doi.org/10.1080/00986440802290110
dc.identifier.urihttps://hdl.handle.net/20.500.14288/10516
dc.identifier.wos260209200016
dc.keywordsCarbon black
dc.keywordsPt nanoparticles
dc.keywordsSupercritical carbon dioxide deposition platinum nanoparticles
dc.keywordsAerogel nanocomposites
dc.keywordsPt/C catalysts
dc.keywordsFuel
dc.keywordsMethanol
dc.keywordsNanotubes
dc.keywordsElectrodes
dc.keywordsOxidation
dc.keywordsSurface
dc.keywordsCathode
dc.language.isoeng
dc.publisherTaylor and Francis Inc
dc.relation.ispartofChemical Engineering Communications
dc.subjectEngineering
dc.subjectChemical engineering
dc.titleVulcan-supported pt electrocatalysts for PEMFCs prepared using supercritical carbon dioxide deposition
dc.typeConference Proceeding
dspace.entity.typePublication
local.contributor.kuauthorErkey, Can
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Chemical and Biological Engineering
relation.isOrgUnitOfPublicationc747a256-6e0c-4969-b1bf-3b9f2f674289
relation.isOrgUnitOfPublication.latestForDiscoveryc747a256-6e0c-4969-b1bf-3b9f2f674289
relation.isParentOrgUnitOfPublication8e756b23-2d4a-4ce8-b1b3-62c794a8c164
relation.isParentOrgUnitOfPublication.latestForDiscovery8e756b23-2d4a-4ce8-b1b3-62c794a8c164

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