Fabrication of protonated chitosan/montmorillonite catalyst for hydrogen production via sodium borohydride in the optimum methanol/propylene glycol mixture

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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.abstractHydrogen (H-2), an energy carrier, is among the advanced energy technologies. In the study, a hybrid metal-free catalyst was provided by protonation of chitosan dispersed on montmorillonite (Chit-Mont-H) using calcination and hydrothermal methods. Highly active H-2 release via sodium borohydride (NaBH4) using Chit-Mont-H in propylene glycol, methanol or propylene glycol/methanol mixture was performed as a first in the literature. H-2 generation rate (HGR) values in methanol and methanol/propylene glycol were 6743 and 23,536 mL min(-1)gcat(-1), respectively. There is a significant increase of approximately 4 times in the HGR values in methanol/propylene glycol compared to methanol. The catalysts by X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray analyser (EDS), and Transmission electron microscopy (TEM) analyses were characterized. The activation energy (Ea) value was calculated as 27.53 kJ mol(-1). Also, the mechanism of H-2 release in a mixture of methanol/ propylene glycol by Chit-Mont-H was proposed.
dc.identifier.doi10.1016/j.ijhydene.2024.03.371
dc.identifier.endpage420
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85189680586
dc.identifier.scopusqualityQ1
dc.identifier.startpage410
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2024.03.371
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6590
dc.identifier.volume65
dc.identifier.wosWOS:001227067300001
dc.identifier.wosqualityN/A
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.subjectChitosan
dc.subjectMontmorillonite
dc.subjectProtonation
dc.subjectMethanol/propylene glycol
dc.subjectHydrogen
dc.titleFabrication of protonated chitosan/montmorillonite catalyst for hydrogen production via sodium borohydride in the optimum methanol/propylene glycol mixture
dc.typeArticle

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