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dc.contributor.authorLu, Yi-Chun
dc.contributor.authorXu, Zhichuan
dc.contributor.authorGasteiger, Hubert A.
dc.contributor.authorChen, Shuo
dc.contributor.authorHamad-Schifferli, Kimberly
dc.contributor.authorShao-Horn, Yang
dc.date.accessioned2011-08-12T18:03:02Z
dc.date.available2011-08-12T18:03:02Z
dc.date.issued2010-06
dc.identifier.issn0002-7863
dc.identifier.issn1520-5126
dc.identifier.urihttp://hdl.handle.net/1721.1/65124
dc.description.abstractPtAu nanoparticles (NPs) were shown to strongly enhance the kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable Li−O2 cells. Li−O2 cells with PtAu/C were found to exhibit the highest round-trip efficiency reported to date. During ORR via xLi+ + O2 + xe− → LixO2, the discharge voltage with PtAu/C was considerably higher than that of pure carbon and comparable to that of Au/C. During OER via LixO2 → xLi+ + O2 + xe−, the charge voltages with PtAu/C fell in the range from 3.4 to 3.8 VLi, which is slightly lower than obtained with Pt. It is hypothesized that PtAu NPs exhibit bifunctional catalytic activity, having surface Au and Pt atoms primarily responsible for ORR and OER kinetics in Li−O2 cells, respectively.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (DE-AC03-76SF00098 with LBNL)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (award DMR-0819762)en_US
dc.language.isoen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/ja1036572en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceProf. Hamad-Schifferlien_US
dc.titlePlatinum-Gold Nanoparticles: A Highly Active Bifunctional Electrocatalyst for Rechargeable Lithium-Air Batteriesen_US
dc.typeArticleen_US
dc.identifier.citationLu, Yi-Chun et al. “Platinum−Gold Nanoparticles: A Highly Active Bifunctional Electrocatalyst for Rechargeable Lithium−Air Batteries.” Journal of the American Chemical Society 132.35 (2010) : 12170-12171.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Biological Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.approverHamad-Schifferli, Kimberly
dc.contributor.mitauthorLu, Yi-Chun
dc.contributor.mitauthorXu, Zhichuan
dc.contributor.mitauthorGasteiger, Hubert A.
dc.contributor.mitauthorChen, Shuo
dc.contributor.mitauthorHamad-Schifferli, Kimberly
dc.contributor.mitauthorShao-Horn, Yang
dc.relation.journalJournal of the Americal Chemical Societyen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsLu, Yi-Chun; Xu, Zhichuan; Gasteiger, Hubert A.; Chen, Shuo; Hamad-Schifferli, Kimberly; Shao-Horn, Yangen
dc.identifier.orcidhttps://orcid.org/0000-0001-7746-5920
dc.identifier.orcidhttps://orcid.org/0000-0001-8199-8703
dc.identifier.orcidhttps://orcid.org/0000-0002-5732-663X
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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