A novel and active ruthenium based supported multiwalled carbon nanotube tungsten nanoalloy catalyst for sodium borohydride hydrolysis

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dc.authoridAvci Hansu, Tulin/0000-0001-5441-4696
dc.contributor.authorHansu, Tulin Avci
dc.date.accessioned2024-12-24T19:27:16Z
dc.date.available2024-12-24T19:27:16Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractAt present, a novel and active catalyst, RuW/MWCNT catalyst, was successfully synthe-sized to complete the hydrolysis reaction of sodium borohydride (NaBH4). The activity of Ru catalyst was increased by adding tungsten (W) to ruthenium (Ru) on multi-walled carbon nanotube (MWCNT) support. Surface characterization of the catalyst was performed with scanning electron microscope (SEM-EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmissing electron microscope (TEM) analysis methods. SEM-EDX revealed that RuW (95:5) catalyst metal ratio was obtained at desired nominal ratio. XRD characterization revealed that W addittion to the Ru structure increased its activity by forming an alloy. W addition Ru altered the electronic structure of the Ru. Parameters affecting the hydrolysis performance of RuW/MWCNT catalyst such as temperature, amount of catalyst, NaBH4 concentration and sodium hydroxide (NaOH) concentration were investigated. Adding NaOH to the reaction vessel reduced the activity of the RuW/ MWCNT catalyst. From the hydrolysis measurements, the activation energy of RuW(95-5)/ MWCNT catalyst was found to be 16.327 kjmol-1, the reaction order as 0.61 and the initial rate as 95,841,4 mL H2gcatmin-1. The stability of the RuW/MWCNT catalyst was tested using 5 times and it was observed that this novel RuW/MWCNT catalyst could complete the hydrolysis reaction despite repeated use.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2022.04.269
dc.identifier.endpage6797
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue18
dc.identifier.scopus2-s2.0-85130530196
dc.identifier.scopusqualityQ1
dc.identifier.startpage6788
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2022.04.269
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6577
dc.identifier.volume48
dc.identifier.wosWOS:000964969400001
dc.identifier.wosqualityQ1
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.subjectNanoalloy catalyst
dc.subjectHydrolysis
dc.subjectSodium borohydride
dc.subjectRuW
dc.subjectMWCNT
dc.titleA novel and active ruthenium based supported multiwalled carbon nanotube tungsten nanoalloy catalyst for sodium borohydride hydrolysis
dc.typeArticle

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