Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/37370

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dc.contributor.authorPérez, P.por
dc.contributor.authorSoria, Miguel A.por
dc.contributor.authorPereira, Ana Isabelpor
dc.contributor.authorTavares, C. J.por
dc.contributor.authorTosti, Silvanopor
dc.contributor.authorMendes, A.por
dc.contributor.authorMadeira, L. M.por
dc.date.accessioned2015-09-28T13:57:24Z-
dc.date.available2015-09-28T13:57:24Z-
dc.date.issued2012-
dc.identifier.urihttp://hdl.handle.net/1822/37370-
dc.description.abstractPd-Ag based membranes, self-supported and supported on porous α-Al2O3, have been studied for hydrogen selective separation. In the case of the self-supported membranes the Pd-Ag permeator tube was prepared by cold-rolling and diffusion welding technique; magnetron sputtering technique was employed for the synthesis of the membrane supported on porous α-Al2O3. The results have shown that the self supported Pd-Ag membranes are infinitively H2-selective and the H2-permeation rate through this membrane is in accordance with Sieverts´ law for detect-free meal membranes; hence, an ultra-pure hydrogen stream can be obtained. The Pd-Ag membrane supported on porous α-Al2O3 is not completely selective towards H2, but requires much less metal since it is much thinner (ca. ~50 vs. 1 µm). In this work, it was studied the water-gas shift on Pd-Ag membrane reactor, but it was also illustrated another application of palladium membranes, in the ethanol steam reforming. The use of the self-supported Pd-Ag membrane leads to enhance the H2 yield in both reactions, providing much better performances than conventional reactors.por
dc.description.sponsorshipPatricia Pérez is grateful to Fundação para a Ciência e a Tecnologia (FCT) for the doctoral grant (reference: SFRH/BD/73673/2010). The authors also acknowledge financing from FCT through the project PTDC / EQU -ERQ/098730/2008.por
dc.language.isoengpor
dc.relationinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/98730/PTpor
dc.rightsopenAccesspor
dc.subjectHydrogen productionpor
dc.subjectWater-gas shift reactionpor
dc.subjectPd-Ag membranepor
dc.subjectMembrane reactorpor
dc.titleSynthesis of Pd-Ag alloy membranes and their application in membrane reactors for hydrogen production and purificationpor
dc.typeconferenceAbstract-
dc.peerreviewedyespor
sdum.publicationstatuspublishedpor
oaire.citationConferenceDate29 - 30 nov. 2012por
sdum.event.typeotherpor
oaire.citationConferencePlaceLisbon, Portugalpor
oaire.citationTitle15th International Seminar / 3rd Scientific Workshop: Advances in Hydrogen Energy Technologies: Key to Sustainable Energy Marketspor
sdum.conferencePublication15th International Seminar / 3rd Scientific Workshop: Advances in Hydrogen Energy Technologies: Key to Sustainable Energy Marketspor
Appears in Collections:CDF - GRF - Comunicações/Communications (with refereeing)

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