Direct Growth of Highly Strained Pt Islands on Branched Ni Nanoparticles for Improved Hydrogen Evolution Reaction Activity

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dc.contributor.authorAlinezhad, Alien
dc.contributor.authorGloag, Lucyen
dc.contributor.authorBenedetti, Tania M.en
dc.contributor.authorCheong, Soshanen
dc.contributor.authorWebster, Richard F.en
dc.contributor.authorRoelsgaard, Martinen
dc.contributor.authorIversen, Bo B.en
dc.contributor.authorSchuhmann, Wolfgangen
dc.contributor.authorGooding, J. Justinen
dc.contributor.authorTilley, Richard D.en
dc.date.accessioned2026-02-26T15:40:31Z
dc.date.available2026-02-26T15:40:31Z
dc.date.issued2019-10-16en
dc.description.abstractThe direct growth of Pt islands on lattice mismatched Ni nanoparticles is a major synthetic challenge and a promising strategy to create highly strained Pt atoms for electrocatalysis. By using very mild reaction conditions, Pt islands with tunable strain were formed directly on Ni branched particles. The highly strained 1.9 nm Pt-island on branched Ni nanoparticles exhibited high specific activity and the highest mass activity for hydrogen evolution (HER) in a pH 13 electrolyte. These results show the ability to synthetically tune the size of the Pt islands to control the strain to give higher HER activity.en
dc.description.sponsorshipThis research was financially supported by the Australian Research Council of Centre of Excellence in Convergent Bio-Nano Science and Technology (CE140100036), the ARC Australian Laureate Fellowship (FL150100060), the Discovery Project (DP190102659), and Center for Materials Crystallography, a Danish National Research Foundation Centre of Excellence (DNRF93). This work used the facilities supported by Microscopy Australia at the Electron Microscope Unit in the Mark Wainwright Analytical Centre at UNSW and at the Centre for Microscopy & Microanalysis at the University of Sydney. W.S. is grateful for financial support from the Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy – EXC-2033 – 390677874. We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association (HGF), for the beamtime at Beamline P21.1 at PETRA III and thank Martin von Zimmermann, Oleh Ivashko, and Ann-Christin Dippel for support.en
dc.description.statusPeer-revieweden
dc.format.extent6en
dc.identifier.issn0002-7863en
dc.identifier.otherPubMed:31580659en
dc.identifier.otherORCID:/0000-0001-7548-1521/work/206440552en
dc.identifier.scopus85073263567en
dc.identifier.urihttps://hdl.handle.net/1885/733806633
dc.language.isoenen
dc.rights© 2019 The Authorsen
dc.sourceJournal of the American Chemical Societyen
dc.titleDirect Growth of Highly Strained Pt Islands on Branched Ni Nanoparticles for Improved Hydrogen Evolution Reaction Activityen
dc.typeJournal articleen
dspace.entity.typePublicationen
local.bibliographicCitation.lastpage16207en
local.bibliographicCitation.startpage16202en
local.contributor.affiliationAlinezhad, Ali; University of New South Walesen
local.contributor.affiliationGloag, Lucy; Research School of Chemistry, ANU College of Science and Medicine, The Australian National Universityen
local.contributor.affiliationBenedetti, Tania M.; University of New South Walesen
local.contributor.affiliationCheong, Soshan; University of New South Walesen
local.contributor.affiliationWebster, Richard F.; University of New South Walesen
local.contributor.affiliationRoelsgaard, Martin; Aarhus Universityen
local.contributor.affiliationIversen, Bo B.; Aarhus Universityen
local.contributor.affiliationSchuhmann, Wolfgang; Ruhr University Bochumen
local.contributor.affiliationGooding, J. Justin; University of New South Walesen
local.contributor.affiliationTilley, Richard D.; University of New South Walesen
local.identifier.citationvolume141en
local.identifier.doi10.1021/jacs.9b07659en
local.identifier.pure748f7540-72e4-4871-a382-3a78abe357aeen
local.identifier.urlhttps://www.scopus.com/pages/publications/85073263567en
local.type.statusPublisheden

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