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dc.contributor.authorZamudio-García, J
dc.contributor.authorPorras Vázquez, José Manuel
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorMarrero-López, David 
dc.date.accessioned2018-11-15T12:26:39Z
dc.date.available2018-11-15T12:26:39Z
dc.date.created2018
dc.date.issued2018-11-15
dc.identifier.urihttps://hdl.handle.net/10630/16891
dc.description.abstractGlobal warming is an important problem that has to be solved without delay. The development of environmental-friendly energy technology is needed to deal with this issue. Solid Oxide Fuel Cells (SOFC) technology has been proposed as a real alternative to fossil fuel combustion. Proton conductors like La2Ce2O7 (LDC), has several advantages in comparison with BaCeO3 due to its high stability in H2O or CO2 conditions [1]. Furthermore, for industry application is necessary to low the high sintering temperature of typical electrolyte materials. La2Ce2O7 was synthesized by the freeze-drying precursor method and calcination conditions have been optimized to obtain single phase with high compaction at 1400 ºC for 1h. A fully characterization has been carried out using X-ray powder diffraction and scanning electron microscopy. The total conductivity was determined by complex impedance spectroscopy in dry and wet air. Transmission Electron Microscopy (TEM) was used to clarify certainly the structure of La2Ce2O7 due to its still unknown. SAEDs patterns revealed a disordered fluorite, not appearing secondary reflections typical of pyrochlore superstructure, finishing the controversy around the correct structure in this material [2,3]. Moreover, an exhaustive study about lowering the sintering temperature with Co and Zn as sintering aids has been investigated obtaining electrolytes that can be used for SOFC. The sintering aids were impregnated using cobalt and zinc nitrates in ethanol media. Both sintering aids allow for obtain high dense pellets lowering the sintering temperature 300 ºC and 400 ºC for samples with cobalt and zinc, respectively, without compromising the electrical and microstructural properties (Fig 1).en_US
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Techen_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectQuímicaen_US
dc.subject.otherProton conductorsen_US
dc.subject.otherLanthanum ceratesen_US
dc.subject.otherSolid Oxide Fuel Cellsen_US
dc.titleStructural analysis and sintering aids effects in La2Ce2O7 proton conductorsen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.centroFacultad de Cienciasen_US
dc.relation.eventtitleXV Simposio de Jóvenes Investigadores Químicosen_US
dc.relation.eventplaceToledoen_US
dc.relation.eventdate05-08/11/2018en_US
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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