Water-dispersable hybrid Au-Pd nanoparticles as catalysts in ethanol oxidation, aqueous phase Suzuki-Miyaura and Heck reactions

Handle URI:
http://hdl.handle.net/10754/562007
Title:
Water-dispersable hybrid Au-Pd nanoparticles as catalysts in ethanol oxidation, aqueous phase Suzuki-Miyaura and Heck reactions
Authors:
Song, Hyon Min; Moosa, Basem ( 0000-0002-2350-4100 ) ; Khashab, Niveen M. ( 0000-0003-2728-0666 )
Abstract:
The catalytic activities of water-dispersable Au@Pd core-shell nanoparticles (NPs) and Au-Pd alloy NPs were examined. There is growing interest in Au-Pd hybridized NPs in a supported matrix or non-supported forms as catalysts in various reactions that are not limited to conventional Pd-related reactions. Four different Au@Pd core-shell NPs in this study were prepared at room temperature with help from the emulsion phase surrounding the Au core NPs. Au-Pd alloy NPs were prepared over 90 °C, and underwent phase transfer to aqueous medium for their catalytic use. Au@Pd core-shell NPs show catalytic activity in ethanol oxidation reactions as electrocatalysts, and both core-shell and alloy NPs are good to excellent catalysts in various Suzuki-Miyaura and Heck reactions as heterogeneous catalysts. Specifically, Au@Pd core-shell NPs with sharp branched arms show the highest yield in the reactions tested in this study. A relatively small amount (0.25 mol%) was used throughout the catalytic reactions. © 2012 The Royal Society of Chemistry.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Smart Hybrid Materials (SHMs) lab; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Journal of Materials Chemistry
Issue Date:
2012
DOI:
10.1039/c2jm32702c
Type:
Article
ISSN:
09599428
Sponsors:
We gratefully acknowledge King Abdullah University of Science and Technology (KAUST) for the support of this work. We acknowledge Dr Dalaver H. Anjum for the assistance in EFTEM imaging. We also acknowledge Dr Tahir Yapici for the ICP-MS experiments on AuPd alloy nanoparticles.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Controlled Release and Delivery Laboratory; Chemical Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSong, Hyon Minen
dc.contributor.authorMoosa, Basemen
dc.contributor.authorKhashab, Niveen M.en
dc.date.accessioned2015-08-03T09:36:06Zen
dc.date.available2015-08-03T09:36:06Zen
dc.date.issued2012en
dc.identifier.issn09599428en
dc.identifier.doi10.1039/c2jm32702cen
dc.identifier.urihttp://hdl.handle.net/10754/562007en
dc.description.abstractThe catalytic activities of water-dispersable Au@Pd core-shell nanoparticles (NPs) and Au-Pd alloy NPs were examined. There is growing interest in Au-Pd hybridized NPs in a supported matrix or non-supported forms as catalysts in various reactions that are not limited to conventional Pd-related reactions. Four different Au@Pd core-shell NPs in this study were prepared at room temperature with help from the emulsion phase surrounding the Au core NPs. Au-Pd alloy NPs were prepared over 90 °C, and underwent phase transfer to aqueous medium for their catalytic use. Au@Pd core-shell NPs show catalytic activity in ethanol oxidation reactions as electrocatalysts, and both core-shell and alloy NPs are good to excellent catalysts in various Suzuki-Miyaura and Heck reactions as heterogeneous catalysts. Specifically, Au@Pd core-shell NPs with sharp branched arms show the highest yield in the reactions tested in this study. A relatively small amount (0.25 mol%) was used throughout the catalytic reactions. © 2012 The Royal Society of Chemistry.en
dc.description.sponsorshipWe gratefully acknowledge King Abdullah University of Science and Technology (KAUST) for the support of this work. We acknowledge Dr Dalaver H. Anjum for the assistance in EFTEM imaging. We also acknowledge Dr Tahir Yapici for the ICP-MS experiments on AuPd alloy nanoparticles.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleWater-dispersable hybrid Au-Pd nanoparticles as catalysts in ethanol oxidation, aqueous phase Suzuki-Miyaura and Heck reactionsen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentSmart Hybrid Materials (SHMs) laben
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.identifier.journalJournal of Materials Chemistryen
kaust.authorMoosa, Basemen
kaust.authorKhashab, Niveen M.en
kaust.authorSong, Hyon Minen
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