Ceria supported copper(0) nanoparticles as efficient and cost-effective catalyst for the dehydrogenation of dimethylamine borane

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dc.authorid0000-0002-6302-1429en_US
dc.authorid0000-0002-7585-0136
dc.contributor.authorTanyıldızı, Seda
dc.contributor.authorMorkan, İzzet
dc.contributor.authorÖzkar, Saim
dc.date.accessioned2021-06-23T19:48:53Z
dc.date.available2021-06-23T19:48:53Z
dc.date.issued2017
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Kimya Bölümüen_US
dc.description.abstractThis work aims the preparation and catalytic use of copper(0) nanoparticles supported on ceria as catalyst in dehydrogenation of dimethylamine borane. They were in situ generated from the reduction of Cu2+/CeO2 during the catalytic dehydrogenation of dimethylamine borane in toluene. The results of characterization by using XRD, SEM, SEM-EDX, TEM, UV-vis, XPS techniques reveal the formation of highly dispersed copper(0) nanoparticles with average particle size of 3.1 +/- 0.8 nm on the surface of ceria nanopowders. Cu(0)/CeO2 nanoparticles are active catalysts releasing 1.0 equiv. H-2 per mole of dimethylamine borane. The catalytic activity of Cu(0)/CeO2 shows variation with the copper loading of ceria and the highest catalytic activity is achieved by using Cu(0)/CeO2 sample with a copper loading of 4.0 wt.% Cu which provides a turnover frequency value of 40 h(-1) and 225 turnovers in hydrogen generation from dimethylamine borane at 60.0 +/- 0.5 degrees C. The equation for the catalytic reaction was established by determining all the products. We performed the kinetic studies for understanding the catalytic dehydrogenation of dimethylamine borane in molecular level. The results of kinetic study reveal that the reaction is first order with respect to catalyst concentration. The work reported here also includes the kinetic study depending on the temperature to determine the activation energy (E-2 = 76 +/- 2 kJ/mol). (C) 2017 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.mcat.2017.03.002
dc.identifier.endpage68en_US
dc.identifier.issn2468-8231
dc.identifier.scopus2-s2.0-85029644497en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage57en_US
dc.identifier.urihttps://doi.org/10.1016/j.mcat.2017.03.002
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9229
dc.identifier.volume434en_US
dc.identifier.wosWOS:000401676000008en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTanyıldızı, Seda
dc.institutionauthorMorkan, İzzet
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofMolecular Catalysisen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCerium(IV) Oxideen_US
dc.subjectCopper Nanoparticlesen_US
dc.subjectHydrogen Generationen_US
dc.subjectDimethylamine Boraneen_US
dc.subjectHeterogeneous Catalysten_US
dc.titleCeria supported copper(0) nanoparticles as efficient and cost-effective catalyst for the dehydrogenation of dimethylamine boraneen_US
dc.typeArticleen_US

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