Effect of expanded natural graphite addition and copper coating on reaction kinetics and hydrogen storage characteristics of metal hydride reactors

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dc.authoridAtalmis, Gamze/0000-0002-2392-7672
dc.authoridTimurkutluk, Bora/0000-0001-6916-7720
dc.contributor.authorAtalmis, Gamze
dc.contributor.authorToros, Serkan
dc.contributor.authorTimurkutluk, Bora
dc.contributor.authorKaplan, Yuksel
dc.date.accessioned2024-11-07T13:24:09Z
dc.date.available2024-11-07T13:24:09Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractExperimental and numerical studies are carried out to determine the effects of copper coating and/or ENG (expanded natural graphite) addition on the hydrogen storage performance of ground LaNi5. The amounts of copper coating and/or ENG addition are also investigated. The results reveal that the thermal conductivity of ground LaNi5 can be improved by up to similar to 6 and similar to 12 times with copper coating and ENG addition, respectively. This results in enhanced hydrogen absorption kinetics thereby significantly reduced hydrogen charging times, compared to those determined for LaNi5 without any addition. On the other hand, the amount of hydrogen stored shows a decreasing trend with increasing copper coating and ENG addition since the weight of storage material loaded to the reactor is kept the same. Nevertheless, the optimum copper and ENG contents are determined regarding the amount of stored hydrogen and the corresponding charging time. Similar H/M values are obtained with the optimized powders with additives compared to that of ground LaNi5. Based on these results, various new samples are also prepared by mixing the decided copper coated LaNi5 and ENG added LaNi5 powders and examined to optimize the composition of these blended powders.
dc.description.sponsorshipScientific and Technical Research Council of Turkiye (TUBITAK) [121M529.100/2000]; Council of Higher Education (YOK)
dc.description.sponsorshipThe authors would like to thank The Scientific and Technical Research Council of Turkiye (TUBITAK) for the financial support under contract number 121M529.100/2000 Ph.D. Scholarship Program governed by Council of Higher Education (YOK) is also acknowledged.
dc.identifier.doi10.1016/j.ijhydene.2023.12.147
dc.identifier.endpage656
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85180412134
dc.identifier.scopusqualityQ1
dc.identifier.startpage647
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2023.12.147
dc.identifier.urihttps://hdl.handle.net/11480/13948
dc.identifier.volume53
dc.identifier.wosWOS:001142335600001
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_20241106
dc.subjectHydrogen storage
dc.subjectMetal hydride
dc.subjectCopper coated LaNi5
dc.subjectExpanded natural graphite (ENG)
dc.subjectThermal conductivity
dc.titleEffect of expanded natural graphite addition and copper coating on reaction kinetics and hydrogen storage characteristics of metal hydride reactors
dc.typeArticle

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