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Influence of the La6W2O15 Phase on the Properties and Integrity of La6-xWO12-x Based Membranes

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Influence of the La6W2O15 Phase on the Properties and Integrity of La6-xWO12-x Based Membranes

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dc.contributor.author Ivanova, Mariya E. es_ES
dc.contributor.author Seeger, Janka es_ES
dc.contributor.author Serra Alfaro, José Manuel es_ES
dc.contributor.author Solis Díaz, Cecilia es_ES
dc.contributor.author Meulenberg, Wilhem Albert es_ES
dc.contributor.author Fischer, Werner es_ES
dc.contributor.author Roitsch, Stefan es_ES
dc.contributor.author Buchkremer, Hans Peter es_ES
dc.date.accessioned 2017-05-10T15:27:51Z
dc.date.available 2017-05-10T15:27:51Z
dc.date.issued 2012
dc.identifier.issn 2225-0956
dc.identifier.uri http://hdl.handle.net/10251/80837
dc.description.abstract The aim of the present work is to evaluate the influence of La6W2O15 secondary phase on the properties and integrity of La6-xWO12-δ–based membranes. Structural, microstructural and thermo–chemical study was carried out evidencing significant crystallographic and thermal expansion anisotropy: the reason for poor thermo–mechanical stability of La6W2O15. Conductivity of La6W2O15 was one to two orders of magnitude lower compared to the phase pure La6-xWO12-δ in the range of 300 to 900 °C. The relaxation study showed that the hydration process was faster for the La6W2O15 compared to the LWO phase, due to the higher electronic contribution to the total conductivity. Short–term stability tests in H2 at 900 °C and in a mixture of CO2 and CH4 at 750 °C were conducted and material remained stable. Remarkable reactivity with NiO and YSZ at elevated temperatures was further evidenced compared to the relative inert behavior towards MgO and CGO. es_ES
dc.language Inglés es_ES
dc.publisher International Institute for Science, Technology & Education es_ES
dc.relation.ispartof Chemistry and Materials Research es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject mixed protonic–electronic conductor es_ES
dc.subject Dense ceramic membrane es_ES
dc.subject Hydrogen separation es_ES
dc.title Influence of the La6W2O15 Phase on the Properties and Integrity of La6-xWO12-x Based Membranes es_ES
dc.type Artículo es_ES
dc.rights.accessRights Abierto 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 Ivanova, ME.; Seeger, J.; Serra Alfaro, JM.; Solis Díaz, C.; Meulenberg, WA.; Fischer, W.; Roitsch, S.... (2012). Influence of the La6W2O15 Phase on the Properties and Integrity of La6-xWO12-x Based Membranes. Chemistry and Materials Research. 2(1):56-81. http://hdl.handle.net/10251/80837 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://iiste.org/Journals/index.php/CMR/article/view/1569 es_ES
dc.description.upvformatpinicio 56 es_ES
dc.description.upvformatpfin 81 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 2 es_ES
dc.description.issue 1 es_ES
dc.relation.senia 222615 es_ES


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