New bifunctional carbon material of metal-free pomegranate peel catalyst and supercapacitor for highly efficient hydrogen production and energy storage

Basit Öğe Kaydı
dc.contributor.authorKarakas, Duygu Elma
dc.date.accessioned2024-12-24T19:24:09Z
dc.date.available2024-12-24T19:24:09Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, pomegranate peel (PP) waste was used as an efficient, cost-effective, and metal-free catalyst for the methanolysis reaction of sodium borohydride (NaBH4); furthermore, the prepared active material was utilized as a supercapacitor for electricity storage. The effect of several parameters, such as different acid concentrations, burning temperature, and burning times on the catalytic performance of the pomegranate peel catalyst (PP-H3PO4-Cat) were examined. Under optimum conditions, the most active catalyst was obtained by burning with 7 M phosphoric acid (H3PO4) solution at 400 degrees C for 45 minutes. The maximum hydrogen generation rate (HGR) obtained from the methanolysis reaction of NaBH4 at 30 degrees C and 60 degrees C was found as 57 200 and 76 228 mL min(-1) gcat(-1), respectively. The activation energy value for the catalytic methanolysis reaction was calculated as 7.89 kJ mol(-1). Furthermore, Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma - optical emission spectrometry (ICP-OES), X-ray diffractometer spectroscopy (XRD), Brunauer-Emmett-Teller (BET), and scanning electron microscope (SEM) analyses were performed for characterization of the synthesized catalyst. The gravimetric capacitance of the prepared electrode (catalyst material with best results) was calculated as 29 F/g at 0.25 A/g current density. The electrodes made from biomass waste are both cheap and have a good capacity.
dc.identifier.doi10.1002/er.7294
dc.identifier.endpage1802
dc.identifier.issn0363-907X
dc.identifier.issn1099-114X
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85115121710
dc.identifier.scopusqualityQ1
dc.identifier.startpage1789
dc.identifier.urihttps://doi.org/10.1002/er.7294
dc.identifier.urihttps://hdl.handle.net/20.500.12604/5864
dc.identifier.volume46
dc.identifier.wosWOS:000697272800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofInternational Journal of Energy Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectcatalysis
dc.subjecthydrogen
dc.subjectmethanolysis
dc.subjectNaBH4
dc.subjectpomegranate peel
dc.subjectsupercapacitor
dc.titleNew bifunctional carbon material of metal-free pomegranate peel catalyst and supercapacitor for highly efficient hydrogen production and energy storage
dc.typeArticle

Dosyalar

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu