Publication: Interplay between humidity, temperature and electrical response of a conductivity sensor based on a La2LiNbO6 double perovskite
dc.affiliation.dpto | UC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química | es |
dc.affiliation.grupoinv | UC3M. Grupo de Investigación: Síntesis y Procesado de Materiales | es |
dc.contributor.author | Torre Gamarra, Carmen de la | |
dc.contributor.author | Woszczak, M. | |
dc.contributor.author | Levenfeld Laredo, Belén | |
dc.contributor.author | Varez, Alejandro | |
dc.contributor.author | García González, E. | |
dc.contributor.author | Urones-Garrote, E. | |
dc.contributor.author | Di Noto, Vito | |
dc.contributor.funder | Banco Santander | es |
dc.contributor.funder | Comunidad de Madrid | es |
dc.contributor.funder | Universidad Carlos III de Madrid | es |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | es |
dc.date.accessioned | 2021-02-10T13:20:53Z | |
dc.date.available | 2021-02-10T13:20:53Z | |
dc.date.issued | 2018-04-07 | |
dc.description.abstract | The La2LiNbO6 perovskite has been prepared in the polycrystalline form by a solid state reaction. Structural characterization by means of monochromatic X-ray and neutron powder diffraction (XRD and ND) and Rietveld refinement showed that the crystal structure belongs to the group of 1 : 1 B-site rock-salt ordered double perovskites with the most common tilting system amongst them being a-a-b+ (S. G. P21/n, a = 5.61612(3), b = 5.76645(2), c = 7.94107(4) degrees A, b = 90.276(2)degrees). Scanning Transmission Electron Microscopy (STEM) evidences that there is no cross-substitution between Li and Nb and that a remaining portion of lanthanum is randomly located in the projected positions of lithium. Impedance spectroscopy has been used to analyse the electrical-response properties of the materials. Conductivity is strongly dependent on the relative humidity (RH), changing by about 3 orders of magnitude between 25 and 90% RH. However, no conductivity increase with change in RH% is observed when the lateral surfaces of the sensor are covered with paraffin. This confirms that adsorption of water by the sample plays a crucial role in modulating the conduction mechanism. La2LiNbO6 also exhibits a very good durability, reproducibility, response time, hysteresis and dynamic linearity to be considered as a promising sensing material for a practical humidity sensor. | en |
dc.description.sponsorship | This work has been supported by Projects funded by the regional government (Comunidad de Madrid through MATERYENER3CM S2013/MIT-2753) and the Spanish Government, (MICINN through MAT2016-78362-C4-3R and MAT2016-78362-C4-4R). V.D.N. thanks the University Carlos III of Madrid for the "8220;Cátedras de Excelencia UC3M-Santander"; (Chair of Excellence UC3M-Santander). | en |
dc.format.extent | 13 | es |
dc.identifier.bibliographicCitation | Journal of Materials Chemistry A, 6(13), Apr. 2018, Pp. 5430-5442 | en |
dc.identifier.doi | https://doi.org/10.1039/c7ta09496e | |
dc.identifier.issn | 2050-7488 | |
dc.identifier.publicationfirstpage | 5430 | es |
dc.identifier.publicationissue | 13 | es |
dc.identifier.publicationlastpage | 5442 | es |
dc.identifier.publicationtitle | Journal of Materials Chemistry A | en |
dc.identifier.publicationvolume | 6 | es |
dc.identifier.uri | https://hdl.handle.net/10016/31903 | |
dc.identifier.uxxi | AR/0000021223 | |
dc.language.iso | eng | es |
dc.publisher | Royal Society of Chemistry | en |
dc.relation.projectID | Gobierno de España. MAT2016-78362-C4-3R | es |
dc.relation.projectID | Gobierno de España. MAT2016-78362-C4-4R | es |
dc.relation.projectID | Comunidad de Madrid. S2013/MIT-2753/MATERYENER3 | es |
dc.rights | © 2018 Royal Society of Chemistry | en |
dc.rights.accessRights | open access | en |
dc.subject.eciencia | Materiales | es |
dc.subject.other | Humidity sensor | en |
dc.subject.other | Double perovskite | en |
dc.subject.other | Impedance spectroscopy | en |
dc.subject.other | Neutron diffraction | en |
dc.subject.other | Proton conductor | en |
dc.title | Interplay between humidity, temperature and electrical response of a conductivity sensor based on a La2LiNbO6 double perovskite | en |
dc.type | research article | * |
dc.type.hasVersion | SMUR | * |
dspace.entity.type | Publication |
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