Rapid and robust hydrogen generation from sodium borohydride in optimum mixture of methanol and ethylene glycol using phosphorus-doped chitosan polymer matrix dispersed on alumina nanoparticles

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dc.authoridSAKA, Cafer/0000-0003-2534-5921
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:27:29Z
dc.date.available2024-12-24T19:27:29Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractHere, the highly efficient hydrogen (H-2) generation by sodium borohydride (NaBH4) in a novel synergistic mixture of methanol and ethylene glycol using phosphorus-doped chitosan polymer matrix incorporated on alumina particles was investigated. The efficiency of P-doped chitosan-alumina hybride catalyst for H-2 generation from NaBH4(NaBH4-HGR) in methanol, ethylene glycol, and methanol + ethylene glycol mixture showed significant differences. In particular, there is a very effective performance for NaBH4-HGR in a methanol + ethylene glycol mixture. The HGR values by mixture of methanol, ethylene glycol and methanol/ethylene glycol were 2342, 7364 and 13548 ml min(-1)g(-1), respectively. Moreover, the H-2 generation rate (HGR) value by NaBH4 using P-doped chitosan-alumina with the combination of methanol (8 ml) + ethylene glycol (2 ml) was 25,964 ml min(-1)g(-1). Also, activation energy (Ea) was 30.62 kJmol(-1). Additionally, the mechanism of H-2 release by NaBH4 solvolysis reactions in the methanol + ethylene glycol mixture using P-doped chitosan-alumina was evaluated. In the methanol + ethylene glycol mixture, both the low viscosity of methanol and the high acidity of ethylene glycol are likely to have a positive synergistic effect on H-2 production at the same time. Moreover, both the positivity of the P atoms and the increased acidity of the alumina become attractive to the negatively charged ions present in the reaction medium.
dc.identifier.doi10.1016/j.molliq.2024.124654
dc.identifier.issn0167-7322
dc.identifier.issn1873-3166
dc.identifier.scopus2-s2.0-85189460042
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2024.124654
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6664
dc.identifier.volume401
dc.identifier.wosWOS:001226079700001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Molecular Liquids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectMethanol and ethylene glycol mixture
dc.subjectPhosphorus doping
dc.subjectChitosan polymer matrix
dc.subjectAlumina nanoparticles
dc.subjectSodium borohydride
dc.titleRapid and robust hydrogen generation from sodium borohydride in optimum mixture of methanol and ethylene glycol using phosphorus-doped chitosan polymer matrix dispersed on alumina nanoparticles
dc.typeArticle

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