Nanoceria supported palladium(0) nanoparticles: Superb catalyst in dehydrogenation of formic acid at room temperature

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dc.contributor.authorAkbayrak, Serdar
dc.contributor.authorTonbul, Yalcin
dc.contributor.authorOzkar, Saim
dc.date.accessioned2024-04-24T16:10:50Z
dc.date.available2024-04-24T16:10:50Z
dc.date.issued2017
dc.departmentDicle Üniversitesien_US
dc.description.abstractHighly efficient dehydrogenation of formic acid (FA) at room temperature was achieved using palladium(0) nanoparticles supported on nanoceria (Pd-0/CeO2) as catalysts. Pd-0/CeO2 was prepared by impregnation of palladium(II) ions on the surface of ceria followed by their reduction with sodium borohydride in aqueous solution at room temperature. Pd((0)/CeO2 was isolated from the reaction solution by centrifugation and characterized by a combination of advanced analytical techniques. The catalytic activity of Pd-0/CeO2 samples with various Pd loading in the range 1.0-5.0% wt was tested in dehydrogenation of formic acid plus sodium formate with a molar ratio of FA/SF = 1/9. Pd-0/CeO2 with Pd loading of 2.27% wt shows superb catalytic activity in dehydrogenation of FA with a turnover frequency (TOF) value of 1400 h(-1) at 25.0 +/- 0.1 degrees C. The superb catalytic activity of Pd-0/CeO2 is ascribed to the reducible nature of ceria during the decomposition of FA (HCO2H -> CO2+H-2). The kinetic data, obtained by measuring the volume of pure H-2 gas, could be converted to the change in concentration of FA by considering the equilibrium between the formate ion and formic acid (HCO2H reversible arrow HCOO- + H3O+). The FA concentration versus time data fit to the first order kinetics with respect to the FA concentration. (C) 2017 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTurkish Academy of Sciences (TUBA)en_US
dc.description.sponsorshipPartial support by Turkish Academy of Sciences (TUBA) is gratefully acknowledged. We would like to thank Ilker Yildiz for XPS analyses.en_US
dc.identifier.doi10.1016/j.apcatb.2017.01.063
dc.identifier.endpage392en_US
dc.identifier.issn0926-3373
dc.identifier.issn1873-3883
dc.identifier.scopus2-s2.0-85010831454en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage384en_US
dc.identifier.urihttps://doi.org/10.1016/j.apcatb.2017.01.063
dc.identifier.urihttps://hdl.handle.net/11468/15142
dc.identifier.volume206en_US
dc.identifier.wosWOS:000395602000040en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofApplied Catalysis B-Environmentalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCeriaen_US
dc.subjectPalladium Nanoparticlesen_US
dc.subjectFormic Aciden_US
dc.subjectHydrogen Generationen_US
dc.subjectDehydrogenationen_US
dc.titleNanoceria supported palladium(0) nanoparticles: Superb catalyst in dehydrogenation of formic acid at room temperatureen_US
dc.typeArticleen_US

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