Amine-functionalized graphene nanosheet-supported PdAuNi alloy nanoparticles: efficient nanocatalyst for formic acid dehydrogenation

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dc.contributor.authorBulut, Ahmet
dc.contributor.authorYurderi, Mehmet
dc.contributor.authorKaya, Murat
dc.contributor.authorAydemir, Murat
dc.contributor.authorBaysal, Akin
dc.contributor.authorDurap, Feyyaz
dc.contributor.authorZahmakiran, Mehmet
dc.date.accessioned2024-04-24T16:24:05Z
dc.date.available2024-04-24T16:24:05Z
dc.date.issued2018
dc.departmentDicle Üniversitesien_US
dc.description.abstractFormic acid (HCOOH), a major by-product of biomass processing with high energy density, stability and non-toxicity, has a great potential as a safe and a convenient liquid hydrogen (H-2) storage material for combustion engines and fuel cell applications. However, high-purity hydrogen release from the catalytic decomposition of aqueous formic acid solution at desirable rates under mild conditions stands as a major challenge that needs to be solved for the practical use of formic acid in on-demand hydrogen generation systems. Described herein is a new nanocatalyst system comprised of 3-aminopropyltriethoxysilane-functionalized graphene nanosheet-supported PdAuNi alloy nanoparticles (PdAuNi/f-GNS), which can reproducibly be prepared by following double solvent method combined with liquid-phase chemical reduction, all at room temperature. PdAuNi/f-GNS selectively catalyzes the decomposition of aqueous formic acid through the dehydrogenation pathway (similar to 100% H-2 selectivity), in the absence of any promoting additives (alkali formates, Bronsted bases, Lewis bases, etc.). PdAuNi/f-GNS nanocatalyst provides CO-free H-2 generation with a turnover frequency of 1090 mol H-2 mol metal(-1) h(-1) in the additive-free dehydrogenation of formic acid at almost complete conversion (>= 92%) even at room temperature. The catalytic activity provided by PdAuNi/f-GNS nanocatalyst is higher than those obtained with the heterogeneous catalysts reported to date for the additive-free dehydrogenation of formic acid. Moreover, PdAuNi/f-GNS nanoparticles show high durability against sintering, clumping and leaching throughout the catalytic runs, so that the PdAuNi/f-GNS nanocatalyst retains almost its inherent catalytic activity and selectivity at the end of the 10th recycle.en_US
dc.description.sponsorshipYuzuncu Yil University Office of Scientific Research Project [FBA-2017-5818]en_US
dc.description.sponsorshipYuzuncu Yil University Office of Scientific Research Project (FBA-2017-5818).en_US
dc.identifier.doi10.1039/c8nj03117g
dc.identifier.endpage16114en_US
dc.identifier.issn1144-0546
dc.identifier.issn1369-9261
dc.identifier.issue19en_US
dc.identifier.scopus2-s2.0-85054025210
dc.identifier.scopusqualityQ2
dc.identifier.startpage16103en_US
dc.identifier.urihttps://doi.org/10.1039/c8nj03117g
dc.identifier.urihttps://hdl.handle.net/11468/16476
dc.identifier.volume42en_US
dc.identifier.wosWOS:000447971700068
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherRoyal Soc Chemistryen_US
dc.relation.ispartofNew Journal of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[No Keyword]en_US
dc.titleAmine-functionalized graphene nanosheet-supported PdAuNi alloy nanoparticles: efficient nanocatalyst for formic acid dehydrogenationen_US
dc.titleAmine-functionalized graphene nanosheet-supported PdAuNi alloy nanoparticles: efficient nanocatalyst for formic acid dehydrogenation
dc.typeArticleen_US

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