Palladium nanoparticles supported on fibrous-structured silica nanospheres (KCC-1): An efficient and selective catalyst for the transfer hydrogenation of alkenes

Handle URI:
http://hdl.handle.net/10754/564003
Title:
Palladium nanoparticles supported on fibrous-structured silica nanospheres (KCC-1): An efficient and selective catalyst for the transfer hydrogenation of alkenes
Authors:
Qureshi, Ziyauddin ( 0000-0002-1246-0827 ) ; Sarawade, Pradip; Albert, Matthias; D'Elia, Valerio; Hedhili, Mohamed Nejib; Köhler, Klaus; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
An efficient palladium catalyst supported on fibrous silica nanospheres (KCC-1) has been developed for the hydrogenation of alkenes and α,β-unsaturated carbonyl compounds, providing excellent yields of the corresponding products with remarkable chemoselectivity. Comparison (high-resolution TEM, chemisorption) with analogous mesoporous (MCM-41, SBA-15) silica-supported Pd nanocatalysts prepared under identical conditions, demonstrates the advantage of employing the fibrous KCC-1 morphology versus traditional supports because it ensures superior accessibility of the catalytically active cores along with excellent Pd dispersion at high metal loading. This morphology ultimately leads to higher catalytic activity for the KCC-1-supported nanoparticles. The protocol developed for hydrogenation is advantageous and environmentally benign owing to the use of HCOOH as a source of hydrogen, water as a solvent, and because of efficient catalyst recyclability and durability. The recycled catalyst has been analyzed by XPS spectroscopy and TEM showing only minor changes in the oxidation state of Pd and in the morphology after the reaction, thus confirming the robustness of the catalyst.
KAUST Department:
KAUST Catalysis Center (KCC); Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Core Labs
Publisher:
Wiley-Blackwell
Journal:
ChemCatChem
Issue Date:
9-Jan-2015
DOI:
10.1002/cctc.201402781
Type:
Article
ISSN:
18673880
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorQureshi, Ziyauddinen
dc.contributor.authorSarawade, Pradipen
dc.contributor.authorAlbert, Matthiasen
dc.contributor.authorD'Elia, Valerioen
dc.contributor.authorHedhili, Mohamed Nejiben
dc.contributor.authorKöhler, Klausen
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2015-08-03T12:22:40Zen
dc.date.available2015-08-03T12:22:40Zen
dc.date.issued2015-01-09en
dc.identifier.issn18673880en
dc.identifier.doi10.1002/cctc.201402781en
dc.identifier.urihttp://hdl.handle.net/10754/564003en
dc.description.abstractAn efficient palladium catalyst supported on fibrous silica nanospheres (KCC-1) has been developed for the hydrogenation of alkenes and α,β-unsaturated carbonyl compounds, providing excellent yields of the corresponding products with remarkable chemoselectivity. Comparison (high-resolution TEM, chemisorption) with analogous mesoporous (MCM-41, SBA-15) silica-supported Pd nanocatalysts prepared under identical conditions, demonstrates the advantage of employing the fibrous KCC-1 morphology versus traditional supports because it ensures superior accessibility of the catalytically active cores along with excellent Pd dispersion at high metal loading. This morphology ultimately leads to higher catalytic activity for the KCC-1-supported nanoparticles. The protocol developed for hydrogenation is advantageous and environmentally benign owing to the use of HCOOH as a source of hydrogen, water as a solvent, and because of efficient catalyst recyclability and durability. The recycled catalyst has been analyzed by XPS spectroscopy and TEM showing only minor changes in the oxidation state of Pd and in the morphology after the reaction, thus confirming the robustness of the catalyst.en
dc.publisherWiley-Blackwellen
dc.subjectchemoselectivityen
dc.subjectfibrous nanosilicaen
dc.subjecthydrogenationen
dc.subjectnanocatalysisen
dc.subjectpalladiumen
dc.titlePalladium nanoparticles supported on fibrous-structured silica nanospheres (KCC-1): An efficient and selective catalyst for the transfer hydrogenation of alkenesen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentCore Labsen
dc.identifier.journalChemCatChemen
dc.contributor.institutionDepartment of Physics, University of MumbaiMumbai, Indiaen
dc.contributor.institutionDepartment of Chemistry, Catalysis Research Center, Technische Universitaet MuenchenGarching, Germanyen
kaust.authorQureshi, Ziyauddinen
kaust.authorSarawade, Pradipen
kaust.authorD'Elia, Valerioen
kaust.authorHedhili, Mohamed Nejiben
kaust.authorBasset, Jean-Marieen
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