Exergy and energy analysis of hydrogen production by the degradation of sodium borohydride in the presence of novel Ru based catalyst

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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.abstractChemically possible hydrogen storage material of the most important and widely used metal hydride compound is sodium borohydride. A current research issue is the devel-opment of systems that allow regulated hydrogen generation employing appropriate cat-alysts for the creation of hydrogen gas from the hydrolysis of sodium borohydride (NaBH4). In this study, controlled hydrogen production from alkali solution of NaBH4 was aimed. On hydrogen generation rate (HGR), the effects of NaBH4 and alkaline solution concentrations, catalyst quantity, and temperature were examined. Considering the energy and exergy analysis, which have gained importance in the international arena in recent years, in this study, the exergy energy analysis of the environment in which the sodium borohydride solution is located was performed. The best one of the Ru-based catalysts synthesized in different atomic ratios was determined as 90:10 RuCr. The surface characterization of the obtained catalyst was carried out using scanning electron microscope (SEM-EDX) and X-ray diffractometer (XRD). In the kinetic calculations, the activation energy was calculated as 35,024 kj/mol and the reaction ordered n was found to be 0,65. By applying exergy and energy analysis to the hydrogen production step, the energy and exergy efficiency of the system were found to be 24% and 7%, respectively.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2022.03.189
dc.identifier.endpage6787
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue18
dc.identifier.scopus2-s2.0-85128164822
dc.identifier.scopusqualityQ1
dc.identifier.startpage6778
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2022.03.189
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6575
dc.identifier.volume48
dc.identifier.wosWOS:000927834100001
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.subjectHydrogen generation
dc.subjectCatalyst
dc.subjectEnergy and exergy analysis
dc.subjectRuCr
dc.subjectMWCNT
dc.titleExergy and energy analysis of hydrogen production by the degradation of sodium borohydride in the presence of novel Ru based catalyst
dc.typeArticle

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