Nanoceria supported cobalt(0) nanoparticles: a magnetically separable and reusable catalyst in hydrogen generation from the hydrolysis of ammonia borane

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dc.authoridOzkar, Saim/0000-0002-6302-1429
dc.authoridAkbayrak, Serdar/0000-0003-3858-2985
dc.contributor.authorAkbayrak, Serdar
dc.contributor.authorTaneroglu, Oguzcan
dc.contributor.authorOzkar, Saim
dc.date.accessioned2025-03-23T19:35:43Z
dc.date.available2025-03-23T19:35:43Z
dc.date.issued2017
dc.departmentSinop Üniversitesi
dc.description.abstractCobalt(0) nanoparticles supported on nanoceria (Co-0/CeO2) were prepared from the reduction of cobalt(II) ions impregnated on the surface of ceria nanopowders. The magnetic Co-0/CeO2 catalyst could be isolated from the reaction solution by using a magnet and characterized by using ICP-OES, XRD, TEM, EDX, BET and XPS techniques. The results reveal that cobalt nanoparticles with particle sizes in the range between 3.5 and 6.0 nm were successfully anchored on the surface of nanoceria. Co-0/CeO2 is a magnetically separable and reusable catalyst in hydrogen generation from the hydrolysis of ammonia borane retaining its initial catalytic activity (TOF = 7.0 min(-1)) even after the fifth use. For comparison, other non-noble metal nanoparticles were also supported on nanoceria. Ni-0/CeO2 and Cu-0/CeO2 provide TOF values of 1.7 min(-1) and 1.5 min(-1), respectively, while Fe-0/CeO2 is catalytically silent in the hydrolysis of ammonia borane at room temperature. The work reported here also includes the results of a kinetic study of the catalytic hydrolysis of ammonia borane depending on the temperature and catalyst concentration.
dc.description.sponsorshipTurkish Academy of Sciences
dc.description.sponsorshipPartial support by the Turkish Academy of Sciences is gratefully acknowledged. We thank the METU Central Lab (Ankara/Turkey) for the TEM, XPS, ICP-OES, and BET analyses.
dc.identifier.doi10.1039/c7nj01035d
dc.identifier.endpage6552
dc.identifier.issn1144-0546
dc.identifier.issn1369-9261
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85022319549
dc.identifier.scopusqualityQ2
dc.identifier.startpage6546
dc.identifier.urihttps://doi.org/10.1039/c7nj01035d
dc.identifier.urihttps://hdl.handle.net/11486/5916
dc.identifier.volume41
dc.identifier.wosWOS:000405276100058
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofNew Journal of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectCost-Effective Catalyst
dc.subjectSodium-Borohydride
dc.subjectDehydrogenation
dc.subjectEfficient
dc.subjectCeria
dc.subjectNanoclusters
dc.subjectDefects
dc.subjectSurface
dc.subjectCarbon
dc.titleNanoceria supported cobalt(0) nanoparticles: a magnetically separable and reusable catalyst in hydrogen generation from the hydrolysis of ammonia borane
dc.typeArticle

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