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AuthorEckardt, Markusdc.contributor.author
Date of accession2020-01-24T16:35:46Zdc.date.accessioned
Available in OPARU since2020-01-24T16:35:46Zdc.date.available
Year of creation2019dc.date.created
Date of first publication2020-01-24dc.date.issued
AbstractAiming at the development of stable and highly ORR active catalysts for PEMFC applications, different Pt-based and Pt-free catalyst materials were developed and characterized regarding their physical and electrochemical properties. For the Pt-based catalysts, composite materials containing electrically well-conducting carbon nanotubes and highly oxidation-stable titania were used as support materials for Pt nanoparticles in order to increase their stability while maintaining the catalytic activity of carbon-supported Pt nanoparticles. The Pt-free catalysts consist of a nitrided and amorphous carbon core and an oxidation-stable metal (oxy)nitride shell (titanium (oxy)nitride, tantalum (oxy)nitride), with both parts acting as ORR catalyst. Additionally, the ORR-active, nitrided carbon cores were characterized, as well. Experimental results and simulations of model catalysts were combined in order to gain information on the ORR reaction pathways on nitrided carbon catalysts as well as the correlation between the structure, e.g., porosity and N-content, and the ORR activity.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
Has part10.1021/acscatal.8b01953dc.relation.haspart
Has part10.1016/j.jpowsour.2018.08.036dc.relation.haspart
Has part10.1016/j.electacta.2019.01.046dc.relation.haspart
Has part10.1016/j.electacta.2016.12.145dc.relation.haspart
Has part10.1002/celc.201600246dc.relation.haspart
Has part10.3762/bjnano.11.1dc.relation.haspart
LicenseStandarddc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v3dc.rights.uri
KeywordFuel celldc.subject
KeywordPEMFCdc.subject
KeywordTiO2dc.subject
KeywordTa205dc.subject
KeywordNitrited carbondc.subject
KeywordORRdc.subject
Dewey Decimal GroupDDC 540 / Chemistry & allied sciencesdc.subject.ddc
LCSHFuel cellsdc.subject.lcsh
LCSHProton exchange membrane fuel cellsdc.subject.lcsh
LCSHElectrocatalysisdc.subject.lcsh
LCSHNitrocarbonsdc.subject.lcsh
LCSHComposite materialsdc.subject.lcsh
TitleORR activity and stability of Pt-based and Pt-free catalysts for PEMFC applicationsdc.title
Resource typeDissertationdc.type
Date of acceptance2019-06-04dcterms.dateAccepted
RefereeBehm, Rolf Jürgendc.contributor.referee
RefereeHüsing, Nicoladc.contributor.referee
DOIhttp://dx.doi.org/10.18725/OPARU-24447dc.identifier.doi
PPN1688526935dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-24510-4dc.identifier.urn
GNDPolymer-Elektrolytmembran-Brennstoffzelledc.subject.gnd
GNDElektrokatalysedc.subject.gnd
GNDDegradationdc.subject.gnd
GNDVerbundwerkstoffdc.subject.gnd
GNDBrennstoffzelledc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
InstitutionInstitut für Oberflächenchemie und Katalyseuulm.affiliationSpecific
Grantor of degreeFakultät für Naturwissenschaftenuulm.thesisGrantor
DCMI TypeTextuulm.typeDCMI
CategoryPublikationenuulm.category
In cooperation withUniversität Salzburguulm.cooperation
In cooperation withNational Institute for Material Science, Tsukuba, Japanuulm.cooperation
Bibliographyuulmuulm.bibliographie


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