Ti modified Pd-Ag membranes for hydrogen separation

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dc.contributor.authorPiskin, Fatih
dc.contributor.authorAkyildiz, Hasan
dc.contributor.authorOzturk, Tayfur
dc.date.accessioned2020-03-26T19:07:44Z
dc.date.available2020-03-26T19:07:44Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractAn investigation was carried out into Pd-Ag separation membranes to check whether a reduction in their Pd content was possible through the incorporation of a third element, namely Ti. For this purpose a combinatorial thin film deposition system was developed incorporating three sputter targets arranged in triangular form. The system had a substrate in the form of a magazine, 6 inch in diameter, accommodating 21 discs arranged again in triangular form aligned with the targets underneath. With this geometry, a library of thin film membranes was obtained in a single experiment covering a wide compositional field, Pd content up to of approx. 75%. The thin film library was then screened with respect their tendency to react with hydrogen. This was accomplished by the resistivity measurements carried out on the membranes, while they are subjected to heating-cooling cycle under hydrogen, the values being compared with identical cycle carried out under argon. Since permeability is a product of hydrogen solubility and diffusivity, membranes that react with hydrogen, i.e. either forming a solid solution or a hydride, delineate compositions which are candidates for separation membranes. In the present work, this procedure was applied to a portion of Ag-Ti Pd ternary system aiming for separation membranes with f.c.c. crystal structure. Mapping based on the resistivity measurement indicated, Ag35Ti22Pd43, Ag13Ti25Pd62 and their near compositions as possible candidates for separation membranes. Copyright (c) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipTUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [MAG 109M580]en_US
dc.description.sponsorshipSupport for this work was provided by TUBITAK (project number MAG 109M580), which the authors gratefully acknowledge.en_US
dc.identifier.doi10.1016/j.ijhydene.2014.11.049en_US
dc.identifier.endpage7558en_US
dc.identifier.issn0360-3199en_US
dc.identifier.issn1879-3487en_US
dc.identifier.issue24en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage7553en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.ijhydene.2014.11.049
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32700
dc.identifier.volume40en_US
dc.identifier.wosWOS:000356549000017en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofINTERNATIONAL JOURNAL OF HYDROGEN ENERGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectHydrogen separation membranesen_US
dc.subjectSputter depositionen_US
dc.subjectThin film membranesen_US
dc.subjectCombinatorial approachen_US
dc.subjectResistivity measurementen_US
dc.titleTi modified Pd-Ag membranes for hydrogen separationen_US
dc.typeArticleen_US

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