Preparation and characterization of activated carbon from acorn cups via HCL-FECL₂ co-activation for hydrogen generation through NABH₄ solvolysis

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dc.authorid0000-0003-1010-9563
dc.contributor.authorIşık, Uğur
dc.date.accessioned2026-07-17T10:59:43Z
dc.date.available2026-07-17T10:59:43Z
dc.date.issued2025
dc.departmentAÇÜ, Rektörlük, Bilim Teknoloji Uygulama ve Araştırma Merkezi
dc.description.abstractThis current study reports the synthesis, characterization, and optimization of a novel catalyst (Ac-HCl-Fe) derived from Acorn cups biomass waste for hydrogen production via sodium borohydride (NaBH₄) solvolysis. The catalyst characterization was conducted using FTIR, SEM, and SEM-EDX techniques. Catalytic performance tests showed the efficiency of Ac-HCl-Fe in hydrogen generation, with parameters including catalyst loading, NaBH₄ quantity, and reaction temperature significantly influencing the kinetics. Remarkably, the NaBH₄ methanolysis reaction catalyzed by Ac-HCl-Fe was completed in 4.0 minutes, while the NaBH4 solvolysis in a binary propylene glycol/methanol (1:1, v/v) solvent system reached completion within just 0.9 minutes, producing a similar volume of hydrogen (~670 mL). The HGR was determined to be 68,300 mL min⁻¹gcat⁻¹ for the NaBH₄ solvolysis reaction conducted in a binary propylene glycol/methanol (1:1, v/v) solvent system at 30 °C. In addition, the effective activation energy was calculated to be 32.36 kJ/mol, that is relatively low compared to other activated carbon-based catalysts reported for similar applications. Overall, the results show that Ac-HCl-Fe is a promising, efficient, and sustainable catalyst for hydrogen generation by solvolysis of NaBH₄, especially in binary solvent systems.
dc.identifier.doi10.51477/mejs.1805593
dc.identifier.endpage246
dc.identifier.issue2
dc.identifier.startpage228
dc.identifier.urihttps://hdl.handle.net/11494/6349
dc.identifier.volume11
dc.indekslendigikaynakTR-Dizin
dc.institutionauthorIşık, Uğur
dc.institutionauthorid0000-0003-1010-9563
dc.language.isoen
dc.publisherBilal Gümüş
dc.relation.ispartofMiddle East Journal of Science
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHydrogen generation
dc.subjectSodium borohydride
dc.subjectSolvolysis
dc.subjectPropylene glycol
dc.subjectBinary solvent system
dc.titlePreparation and characterization of activated carbon from acorn cups via HCL-FECL₂ co-activation for hydrogen generation through NABH₄ solvolysis
dc.typeArticle

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