Highly active hydrogen production from hydrolysis of potassium borohydride by caffeine carbon quantum dot-supported cobalt catalyst in ethanol solvent by hydrothermal treatment

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dc.authoridSAKA, Cafer/0000-0003-2534-5921
dc.contributor.authorOnat, Erhan
dc.contributor.authorIzgi, Mehmet Sait
dc.contributor.authorSahin, Omer
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:27:17Z
dc.date.available2024-12-24T19:27:17Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractHerein, the efficiency of the Co catalyst synthesized in caffeine-based carbon quantum dot- supported material using ethanol solvent was evaluated for H2 production from the hy- drolysis of KBH4. The chemical compositions and morphology structures of these caffeine carbon dot-supported Co catalysts were carefully characterized by XRD, TEM, BET, EDS, FTIR, XPS, and ICP/OES analyses. XPS, FTIR and EDX analyses showed abundant oxygen atoms on the caffeine carbon dot-supported Co catalyst. It can be attributed to the prevention of aggregation of particles by reducing the average particle size with both caffeine and carbon quantum dots materials. The catalysts prepared in methanol and ethanol solvent by hydrothermal treatment compared to water have significant effects on H2 production from KBH4 hydrolysis. The H2 production rate obtained by Co@MOF-CQD (ethanol) at 30 degrees C was 17,081 ml min-1g-1. At the same time, the TOF value obtained with 4% KBH4 for the Co@MOF-CQD (ethanol) was found as 2765 h-1. The reusability of Co@CQD-MOF(ethanol) for the catalytic hydrolysis of KBH4 for H2 production was evaluated by six consecutive experiments.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific Research Projects Coordinatorship of Siirt University [2022-SIUFEB-010]
dc.description.sponsorshipThe Scientific Research Projects Coordinatorship of Siirt University has supported a part of this study with the project numbered 2022-SIUFEB-010.
dc.identifier.doi10.1016/j.ijhydene.2023.08.176
dc.identifier.endpage375
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85169513211
dc.identifier.scopusqualityQ1
dc.identifier.startpage362
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2023.08.176
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6587
dc.identifier.volume51
dc.identifier.wosWOS:001139380200001
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.subjectCaffeine carbon quantum dot
dc.subjectCo catalyst
dc.subjectSolvents
dc.subjectHydrothermal treatment
dc.subjectHydrogen
dc.titleHighly active hydrogen production from hydrolysis of potassium borohydride by caffeine carbon quantum dot-supported cobalt catalyst in ethanol solvent by hydrothermal treatment
dc.typeArticle

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