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A new approach to fuel cell electrodes : lanthanum aluminate yielding fine Pt nanoparticle exsolution for oxygen reduction reaction

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dc.contributor.authorOzkan, Selda
dc.contributor.authorKim, Seo Jin
dc.contributor.authorMiller, David N.
dc.contributor.authorIrvine, John T. S.
dc.date.accessioned2024-02-16T15:30:12Z
dc.date.available2024-02-16T15:30:12Z
dc.date.issued2024-02-13
dc.identifier299078460
dc.identifierd289c670-d464-49a6-bfa0-353ac6aca72a
dc.identifier85184731355
dc.identifier.citationOzkan , S , Kim , S J , Miller , D N & Irvine , J T S 2024 , ' A new approach to fuel cell electrodes : lanthanum aluminate yielding fine Pt nanoparticle exsolution for oxygen reduction reaction ' , Advanced Energy Materials , vol. Early View . https://doi.org/10.1002/aenm.202303025en
dc.identifier.issn1614-6840
dc.identifier.otherORCID: /0000-0002-8394-3359/work/153451529
dc.identifier.urihttps://hdl.handle.net/10023/29275
dc.descriptionWe acknowledge support from the Engineering and Physical Sciences Research Council (EPSRC) Critical Mass Grant EP/R023522/1, EPSRC Light element Analysis Facility Grant EP/T019298/1 and the EPRC Strategic Equipment Resource grant EP/R023751/1.en
dc.description.abstractDesigning an electrocatalyst with low Pt content is an immediate need for essential reactions in low temperature fuel cell systems. In the present work, La0.9925Ba0.0075Al0.995Pt0.005O3 is aimed at using with low (only 0.5%) Pt doping as an electrocatalyst for oxygen reduction reaction (ORR). The low doping level renders exsolution of 1–2 nm nanoparticles with uniform dispersion upon reduction in H2/N2 at low temperatures. Pt exsolved perovskite oxides deliver significantly enhanced catalytic activity for ORR and improved stability in alkaline media. This study demonstrates that LaAlO3 with low noble metal content holds immense potential as an electrocatalyst in real fuel cell systems.
dc.format.extent3531653
dc.language.isoeng
dc.relation.ispartofAdvanced Energy Materialsen
dc.subjectAlkaline fuel cellsen
dc.subjectElectrocatalysten
dc.subjectLaAIO3en
dc.subjectOxygen reduction reactionen
dc.subjectORRen
dc.subjectPerovskite oxidesen
dc.subjectPt exsolutionen
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleA new approach to fuel cell electrodes : lanthanum aluminate yielding fine Pt nanoparticle exsolution for oxygen reduction reactionen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. Centre for Energy Ethicsen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doi10.1002/aenm.202303025
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/X038963/1en
dc.identifier.grantnumberEP/R023522/1en
dc.identifier.grantnumberEP/T019298/1en
dc.identifier.grantnumberEP/R023751/1en


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