Catalytic activities of non-noble metal catalysts (Cu-B, Fe-B, and Ni-B) with C.Vulgaris microalgal strain support modified by using phosphoric acid for hydrogen generation from sodium borohydride methanolysis

dc.authoridBekirogullari, Mesut/0000-0001-9539-9234
dc.contributor.authorBekirogullari, Mesut
dc.date.accessioned2024-12-24T19:27:14Z
dc.date.available2024-12-24T19:27:14Z
dc.date.issued2019
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, a novel microalgae based support material was developed and applied. The Chlorella Vulgaris microalgal strain was modified by treating the algal biomass with phosphoric acid for proton binding process (CVMS-H3PO4). Ultimately, the CVMS-H3PO4-metal (Cu-B, Ni-B, or Fe-B) catalysts were used as highly efficient solid catalysts to produce hydrogen from the methanolysis of NaBH4. Once the superior metal was identified, the NaBH4 concentration, metal percentage in the supported-catalyst, catalyst amount, and temperature effect on the methanolysis reaction was thoroughly investigated. The maximum hydrogen production rate for the CVMS-H3PO4 supported-catalyst was obtained with the use of 20% Cu metal at 30 degrees C and it was found to be 6500 mL/min/g(cat). In addition, the maximum hydrogen production rate for the CVMS-H3PO4 supported-catalyst was attained with the use of 20% Cu metal at 60 degrees C and it was found to be 21176 mL/min/g(cat). Also, the activation energy was determined as 23.79 kJ/mol. The re-usability studies of the microalgal strain supported-Cu-B catalyst were performed and it was found that there was no decrease in % conversion for this catalyst. XRD, FTIR, SEM, and ICP-MS analysis were carried out to characterize CVMS-H3PO4-CuB catalyst thoroughly. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2019.04.147
dc.identifier.endpage14991
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue29
dc.identifier.scopus2-s2.0-85065417711
dc.identifier.scopusqualityQ1
dc.identifier.startpage14981
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2019.04.147
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6548
dc.identifier.volume44
dc.identifier.wosWOS:000472127700045
dc.identifier.wosqualityQ2
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.subjectMicroalgae
dc.subjectC.Vulgaris
dc.subjectSupport material
dc.subjectNon-metal catalyst
dc.subjectHydrogen
dc.titleCatalytic activities of non-noble metal catalysts (Cu-B, Fe-B, and Ni-B) with C.Vulgaris microalgal strain support modified by using phosphoric acid for hydrogen generation from sodium borohydride methanolysis
dc.typeArticle

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