Facile oxygen doped heterojunction structured hybrid particles with ?-aluminium oxide dispersed over graphitic carbon nitride for dehydrogenation of sodium borohydride in methanol: Catalytic properties and mechanism

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dc.authoridSAKA, Cafer/0000-0003-2534-5921
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:27:18Z
dc.date.available2024-12-24T19:27:18Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractIt is important to develop new metal-free catalysts that are both low-cost and environmentally friendly with high performance. Recently, heterojunction catalysts have been used more than single-component catalysts in catalytic reactions. The current study reports the facile production of a new environmental and green metal-free nanocatalyst by three stages including the synthesis of graphite carbon nitride (GCN) from urea, synthesis of GCN-gamma-Al2O3 hybrid composite from GCN and aluminium oxide (gamma-Al2O3), and synthesis of O-doped GCN-gamma-Al2O3 from the interaction of hybrid GCN-gamma-Al2O3 with nitric acid treatment. The obtained O-doped GCN-gamma-Al2O3 hybrid material was used to catalyse the green and environmental H2 production(H2-P) from sodium borohydride (NaBH4) methanolysis for the first time. The chemical compositions and morphology structures of these heterojunction-structured hybrid catalysts were carefully characterized by SEM-EDS, XRD, FTIR, TEM, and XPS analyses, and the catalytic activities and reusability were systematically evaluated. The H2 generation rate (HGR) values of GCN, GCN-gamma-Al2O3 and O doped GCN-gamma-Al2O3 catalysts were found as 3486, 5310 and 10080 ml min-1 g-1, respectively. The activation energy (Ea) for the O-doped GCN-gamma-Al2O3 catalyst was 35.12 kJ mol-1. Besides, the mechanism of the O-doped GCN-gamma-Al2O3 catalyst in the NaBH4 methanolysis reaction(NaBH4-RM) was tried to be clarified.
dc.identifier.doi10.1016/j.ijhydene.2023.10.340
dc.identifier.endpage1098
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85178317842
dc.identifier.scopusqualityQ1
dc.identifier.startpage1089
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2023.10.340
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6589
dc.identifier.volume51
dc.identifier.wosWOS:001217410700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectMetal-free nanocatalyst
dc.subjectOxygen doping
dc.subjectSodium borohydride
dc.subjecthydrogen
dc.titleFacile oxygen doped heterojunction structured hybrid particles with ?-aluminium oxide dispersed over graphitic carbon nitride for dehydrogenation of sodium borohydride in methanol: Catalytic properties and mechanism
dc.typeArticle

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