Mostrar el registro sencillo del ítem
dc.contributor.author | Seeger, Janka | es_ES |
dc.contributor.author | Ivanova, Mariya E. | es_ES |
dc.contributor.author | Meulenberg, Wilhelm A. | es_ES |
dc.contributor.author | Sebold, Doris | es_ES |
dc.contributor.author | Stoever, Detlev | es_ES |
dc.contributor.author | Scherb, Tobias | es_ES |
dc.contributor.author | Schumacher, Gerhard | es_ES |
dc.contributor.author | Escolástico Rozalén, Sonia | es_ES |
dc.contributor.author | Solis Díaz, Cecilia | es_ES |
dc.contributor.author | Serra Alfaro, José Manuel | es_ES |
dc.date.accessioned | 2017-06-29T07:26:23Z | |
dc.date.issued | 2013-09-16 | |
dc.identifier.issn | 0020-1669 | |
dc.identifier.uri | http://hdl.handle.net/10251/84089 | |
dc.description.abstract | [EN] Mixed proton-electron conductors (MPEC) can be used as gas separation membranes to extract hydrogen from a gas stream, for example, in a power plant. From the different MPEC, the ceramic material lanthanum tungstate presents an important mixed protonic-electronic conductivity. Lanthanum tungstate La6-xWO12-y (with y = 1.5x + delta and x = 0.5-0.8) compounds were prepared with La/W ratios between 4.8 and 6.0 and sintered at temperatures between 1300 and 1500 degrees C in order to study the dependence of the single-phase formation region on the La/W ratio and temperature. Furthermore, compounds substituted in the La or W position were prepared. Ce, Nd, Tb, and Y were used for partial substitution at the La site, while Ir, Re, and Mo were applied for W substitution. All substituents were applied in different concentrations. The electrical conductivity of nonsubstituted La6-xWO12-y and for all substituted La6-xWO12-y compounds was measured in the temperature range of 400-900 degrees C in wet (2.5% H2O) and dry mixtures of 4% H-2 in Ar. The greatest improvement in the electrical characteristics was found in the case of 20 mol % substitution with both Re and Mo. After treatment in 100% H-2 at 800 degrees C, the compounds remained unchanged as confirmed with XRD, Raman, and SEM. | es_ES |
dc.description.sponsorship | The authors thank Dr. St. Roitsch for TEM analysis, Dr. W. Fischer and Mr. M. Ziegner for XRD analysis, and Dr. F. Tietz and Mrs. M.-T. Gerhards for thermal expansion analysis. Financial support from the Helmholtz Association through the Helmholtz Alliance MEM-BRAIN (Initiative and Networking Fund) and the Spanish Ministry for Science and Innovation (Grants ENE2011-24761, CSD-2009-0050, and SEV-2012-0267) is gratefully acknowledged. | |
dc.language | Inglés | es_ES |
dc.publisher | American Chemical Society | es_ES |
dc.relation.ispartof | Inorganic Chemistry | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.title | Synthesis and Characterization of Nonsubstituted and Substituted Proton-Conducting La6xWO12-y | es_ES |
dc.type | Artículo | es_ES |
dc.embargo.lift | 10000-01-01 | |
dc.embargo.terms | forever | es_ES |
dc.identifier.doi | 10.1021/ic401104m | |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//ENE2011-24761/ES/DESARROLLO DE NUEVOS DISPOSITIVOS IONICOS PARA LA PRODUCCION EFICIENTE Y SOSTENIBLE DE ENERGIA Y PRODUCTOS QUIMICOS%2FCOMBUSTIBLES/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//CSD2009-00050/ES/Desarrollo de catalizadores más eficientes para el diseño de procesos químicos sostenibles y produccion limpia de energia/ | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//SEV-2012-0267/ | |
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 | Seeger, J.; Ivanova, ME.; Meulenberg, WA.; Sebold, D.; Stoever, D.; Scherb, T.; Schumacher, G.... (2013). Synthesis and Characterization of Nonsubstituted and Substituted Proton-Conducting La6xWO12-y. Inorganic Chemistry. 52(18):10375-10386. https://doi.org/10.1021/ic401104m | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1021/ic401104m | es_ES |
dc.description.upvformatpinicio | 10375 | es_ES |
dc.description.upvformatpfin | 10386 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 52 | es_ES |
dc.description.issue | 18 | es_ES |
dc.relation.senia | 247317 | es_ES |
dc.identifier.pmid | 24000891 | |
dc.contributor.funder | Ministerio de Ciencia e Innovación | |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |