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dc.contributor.authorHan, Jeong Woo
dc.contributor.authorJalili, Helia
dc.contributor.authorKuru, Yener
dc.contributor.authorCai, Zhuhua
dc.contributor.authorYildiz, Bilge
dc.date.accessioned2013-10-17T20:20:31Z
dc.date.available2013-10-17T20:20:31Z
dc.date.issued2011-04
dc.identifier.issn1938-5862
dc.identifier.issn1938-6737
dc.identifier.urihttp://hdl.handle.net/1721.1/81420
dc.description.abstractWe report on the mechanistic effects of epitaxial strain on the surface chemistry, in particular the segregation of Sr cations on La0.7Sr0.3MnO3 (LSM) model dense thin films. Our results show that the LSM film surfaces are layered and exhibit strain-dependent nanoscale lateral structures. All surfaces examined here were Sr-rich. X-ray photoelectron spectroscopy shows a larger Sr segregation tendency for the tensile strained LSM films. This result is in good agreement with our first principles-based calculations, which predict lower Sr segregation energy on the tensile strained LSM surface. Our findings suggest the importance of lattice strain as a key parameter to tune the surface chemistry for facilitating oxygen reduction kinetics on transition metal perovskite cathode surfaces for solid oxide fuel cells.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Office of Fossil Energy, Grant No. DE–NT0004117)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Basic Energy Sciences, Grant No. DE-SC0002633)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (TeraGrid Advanced Support Program, Grant No. TG–ASC090058)en_US
dc.language.isoen_US
dc.publisherElectrochemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1149/1.3570200en_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.sourceMIT Web Domainen_US
dc.titleStrain Effects on the Surface Chemistry of La[subscript 0.7]Sr[subscript 0.3]MnO[subscript 3]en_US
dc.title.alternativeStrain Effects on the Surface Chemistry of La0.7Sr0.3MnO3en_US
dc.typeArticleen_US
dc.identifier.citationHan, Jeong Woo, Helia Jalili, Yener Kuru, Zhuhua Cai, and Bilge Yildiz. “Strain Effects on the Surface Chemistry of La0.7Sr0.3MnO3.” ECS Transactions, 35 (1). pp.2097-2104. © The Electrochemical Society, 2011.en_US
dc.contributor.departmentMIT Materials Research Laboratoryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Electrochemical Interfacesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Nuclear Scienceen_US
dc.contributor.mitauthorHan, Jeong Wooen_US
dc.contributor.mitauthorJalili, Heliaen_US
dc.contributor.mitauthorKuru, Yeneren_US
dc.contributor.mitauthorCai, Zhuhuaen_US
dc.contributor.mitauthorYildiz, Bilgeen_US
dc.relation.journalECS Transactionsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsHan, Jeong Woo; Jalili, Helia; Kuru, Yener; Cai, Zhuhua; Yildiz, Bilgeen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-2688-5666
mit.licensePUBLISHER_POLICYen_US


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