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dc.contributor.authorFan, Zhanxi
dc.contributor.authorZhu, Yihan
dc.contributor.authorHuang, Xiao
dc.contributor.authorHan, Yu
dc.contributor.authorWang, Qingxiao
dc.contributor.authorLiu, Qing
dc.contributor.authorHuang, Ying
dc.contributor.authorGan, Chee Lip
dc.contributor.authorZhang, Hua
dc.date.accessioned2015-08-03T12:32:28Z
dc.date.available2015-08-03T12:32:28Z
dc.date.issued2015-03-17
dc.identifier.issn14337851
dc.identifier.doi10.1002/anie.201500993
dc.identifier.urihttp://hdl.handle.net/10754/564108
dc.description.abstractThe synthesis of ultrathin face-centered-cubic (fcc) Au@Pt rhombic nanoplates is reported through the epitaxial growth of Pt on hexagonal-close-packed (hcp) Au square sheets (AuSSs). The Pt-layer growth results in a hcp-to-fcc phase transformation of the AuSSs under ambient conditions. Interestingly, the obtained fcc Au@Pt rhombic nanoplates demonstrate a unique (101)f orientation with the same atomic arrangement extending from the Au core to the Pt shell. Importantly, this method can be extended to the epitaxial growth of Pd on hcp AuSSs, resulting in the unprecedented formation of fcc Au@Pd rhombic nanoplates with (101)f orientation. Additionally, a small amount of fcc (100)f-oriented Au@Pt and Au@Pd square nanoplates are obtained with the Au@Pt and Au@Pd rhombic nanoplates, respectively. We believe that these findings will shed new light on the synthesis of novel noble bimetallic nanostructures. Phase change: Ultrathin Au@Pt and Au@Pd core-shell nanoplates were prepared from Au square sheets. A phase transformation from hexagonal close-packed (hcp) to face-centered cubic (fcc) is observed upon coating the hcp Au square sheets with Pt or Pd under ambient conditions. The prepared fcc Au@Pt and Au@Pd rhombic nanoplates demonstrate unique (101)f orientation (picture shows a typical fcc Au@Pt rhombic nanoplate). © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
dc.description.sponsorshipThis work was supported by MOE under AcRF Tier 2 (ARC 26/13, No. MOE2013-T2-1-034), AcRF Tier 1 (RG 61/12, RGT18/13, and RG5/13), and Start-Up Grant (M4080865.070.706022).
dc.publisherWiley
dc.subjectelectron microscopy
dc.subjectgold
dc.subjectnanostructures
dc.subjectnoble metals
dc.subjectphase transformation
dc.titleSynthesis of ultrathin face-centered-cubic Au@Pt and Au@Pd core-shell nanoplates from hexagonal-close-packed Au square sheets
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
dc.contributor.departmentChemical Science Program
dc.contributor.departmentCore Labs
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratory
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAngewandte Chemie International Edition
dc.contributor.institutionSchool of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, Singapore
dc.contributor.institutionNanyang Technological University, Temasek Laboratories NTU, 9th Storey, BorderX Block, Singapore, Singapore
kaust.personZhu, Yihan
kaust.personHan, Yu
kaust.personWang, Qingxiao
dc.date.published-online2015-03-17
dc.date.published-print2015-05-04


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