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https://hdl.handle.net/20.500.11851/7770
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sankır, Mehmet | - |
dc.contributor.author | Serin, Ramis Berkay | - |
dc.contributor.author | Semiz, Levent | - |
dc.contributor.author | Demirci Sankır, Nurdan | - |
dc.date.accessioned | 2021-09-11T15:59:38Z | - |
dc.date.available | 2021-09-11T15:59:38Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.issn | 1879-3487 | - |
dc.identifier.uri | https://doi.org/10.1016/j.ijhydene.2013.12.011 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.11851/7770 | - |
dc.description.abstract | In this study, for the first time, hydrogen gas generation rate is dynamically measured by transferring required amount of sodium borohydride solution to maintain 1 or 2 normal liters of hydrogen gas generation per minute. Three different catalysts (iron, platinum and ruthenium) are used in order to investigate the critical catalyst concentration, catalyst amount and the rate relation and as well as the influence of the sodium borohydride concentration on the rate equations. It has been demonstrated that the linear approximation from the initial hydrogen gas generation data usually reported in the literature is not valid. Moreover, the actual rates reported here are higher and lower than the linear approximations depending on the type of the catalyst. It is about 60 percent lower than linear approximation when iron catalyst is used. Therefore, calculating hydrogen gas generation rate as NL min(-1) g(catalyst)(-1) is invalid. On the other hand, it has been observed that the rate equation may not be dependent on the amount of the sodium borohydride concentration if the highest catalytic activity is achieved. Hence, most of the rate equations in the literature are only valid for a range, which is limited to the highest catalytic activity. Additionally, it has been concluded that the amount of catalyst and sodium borohydride concentration may be optimized to observe almost 100% efficiencies. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.description.sponsorship | "The Scientific And Technological Research Council Of Turkey" (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [112M474] | en_US |
dc.description.sponsorship | Authors would like to appreciate to "The Scientific And Technological Research Council Of Turkey" (TUBITAK) for their support under the contract number 112M474. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Pergamon-Elsevier Science Ltd | en_US |
dc.relation.ispartof | International Journal of Hydrogen Energy | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Dynamic hydrogen generation rate | en_US |
dc.subject | Catalyst | en_US |
dc.subject | Sodium borohydride concentrations | en_US |
dc.subject | Platinum | en_US |
dc.subject | Iron | en_US |
dc.subject | Ruthenium | en_US |
dc.title | Unusual Behavior of Dynamic Hydrogen Generation From Sodium Borohydride | en_US |
dc.type | Article | en_US |
dc.department | Faculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineering | en_US |
dc.department | Fakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü | tr_TR |
dc.identifier.volume | 39 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.startpage | 2608 | en_US |
dc.identifier.endpage | 2613 | en_US |
dc.identifier.wos | WOS:000331920100020 | en_US |
dc.identifier.scopus | 2-s2.0-84893467295 | en_US |
dc.institutionauthor | Sankır, Mehmet | - |
dc.institutionauthor | Demirci Sankır, Nurdan | - |
dc.identifier.doi | 10.1016/j.ijhydene.2013.12.011 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.scopusquality | Q1 | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | 02.6. Department of Material Science and Nanotechnology Engineering | - |
crisitem.author.dept | 02.6. Department of Material Science and Nanotechnology Engineering | - |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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