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Enhanced H2 Separation through Mixed Proton Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25 d

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Enhanced H2 Separation through Mixed Proton Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25 d

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dc.contributor.author Escolástico Rozalén, Sonia es_ES
dc.contributor.author Seeger, J. es_ES
dc.contributor.author Roitsch, S. es_ES
dc.contributor.author Ivanova, M. es_ES
dc.contributor.author Meulenberg, Wilhem Albert es_ES
dc.contributor.author Serra Alfaro, José Manuel es_ES
dc.date.accessioned 2016-09-28T06:42:04Z
dc.date.issued 2013-08
dc.identifier.issn 1864-5631
dc.identifier.uri http://hdl.handle.net/10251/70522
dc.description.abstract La5.5WO11.25- is a proton-conducting oxide that shows high protonic conductivity, sufficient electronic conductivity, and stability in moist CO2 environments. However, the H-2 flows achieved to date when using La5.5WO11.25- membranes are still below the threshold for practical application in industrial processes. With the aim of improving the H-2 flow obtained with this material, La5.5WO11.25- was doped in the W position by using Re and Mo; the chosen stoichiometry was La5.5W0.8M0.2O11.25-. This work presents the electrochemical characterization of these two compounds under reducing conditions, the H-2 separation properties, as well as the influence of the H-2 concentration in the feed stream, degree of humidification, and operating temperature. Doping with both Re and Mo enabled the magnitude of H-2 permeation to be enhanced, reaching unrivaled values of up to 0.095mLmin(-1)cm(-2) at 700 degrees C for a La5.5W0.8Re0.2O11.25- membrane (760m thick). The spent membranes were investigated by using XRD, SEM, and TEM on focused-ion beam lamellas. Furthermore, the stability in CO2-rich and H2S-containing atmospheres was evaluated, and the compounds were shown to be stable in the atmospheres studied. es_ES
dc.description.sponsorship Financial support from the Spanish Ministry for Science and Innovation (Grants JAE-Pre 08-0058, ENE2011-24761, CSD-2009-0050 and SEV-2012-0267) and the Helmholtz Association of German Research Centers through the Helmholtz Alliance MEM-BRAIN (Initiative and Networking Fund) is kindly acknowledged. en_EN
dc.language Inglés es_ES
dc.publisher Wiley-VCH Verlag es_ES
dc.relation Spanish Ministry for Science and Innovation JAE-Pre 08-0058 ENE2011-24761 CSD-2009-0050 SEV-2012-0267 es_ES
dc.relation Helmholtz Association of German Research Centers through the Helmholtz Alliance MEM-BRAIN (Initiative and Networking Fund) es_ES
dc.relation.ispartof ChemSusChem es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Conducting materials es_ES
dc.subject Hydrogen es_ES
dc.subject Lanthanum es_ES
dc.subject Membranes es_ES
dc.subject Proton transport es_ES
dc.title Enhanced H2 Separation through Mixed Proton Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25 d es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1002/cssc.201300091
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Escolástico Rozalén, S.; Seeger, J.; Roitsch, S.; Ivanova, M.; Meulenberg, WA.; Serra Alfaro, JM. (2013). Enhanced H2 Separation through Mixed Proton Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25 d. ChemSusChem. 6(8):1523-1532. doi:10.1002/cssc.201300091 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/cssc.201300091 es_ES
dc.description.upvformatpinicio 1523 es_ES
dc.description.upvformatpfin 1532 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 6 es_ES
dc.description.issue 8 es_ES
dc.relation.senia 246575 es_ES


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