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dc.contributor.authorPérez Colodrero, Rosario Mercedes
dc.contributor.authorRuiz Salcedo, Inés
dc.contributor.authorBazaga García, Montse
dc.contributor.authorMilla-Pérez, Diego F.
dc.contributor.authorDurán-Martín, Jonatan D.
dc.contributor.authorRamirez Losilla, Enrique 
dc.contributor.authorMoreno-Real, Laureano 
dc.contributor.authorRius, Jordi
dc.contributor.authorGarcía-Aranda, Miguel Ángel 
dc.contributor.authorDemadis, Konstantinos D.
dc.contributor.authorOlivera-Pastor, Pascual 
dc.contributor.authorCabeza-Diaz, Aurelio 
dc.date.accessioned2021-02-25T11:06:02Z
dc.date.available2021-02-25T11:06:02Z
dc.date.issued2017
dc.identifier.citationColodrero, R., Salcedo, I., Bazaga-García, M., Milla-Pérez, D., Durán-Martín, J., Losilla, E., Moreno-Real, L., Rius, J., Aranda, M., Demadis, K., Olivera-Pastor, P., & Cabeza, A. (2017). Structural variability in M2+ 2-hydroxyphosphonoacetate moderate proton conductors. Pure and Applied Chemistry, 89(1), 75–87. https://doi.org/10.1515/pac-2016-1003es_ES
dc.identifier.urihttps://hdl.handle.net/10630/20986
dc.description.abstractThe structural variability of two series of Mg2+- and Zn2+- 2-hydroxyphosphonoacetates have been studied in the range of 25–80 °C and 95 % relative humidity in order to correlate the structure with the proton conductivity properties. In addition to selected previously reported 1D, 2D and 3D materials, a new compound, KZn6(OOCCH(OH)PO3)4(OH)·5H2O (KZn6-HPAA-3D), has been prepared and thoroughly characterized. The crystal structure of this solid, solved ab initio from synchrotron X-ray powder diffraction data, consists of a negatively charged 3D framework with K+ ions, as compensating counterions. It also contains water molecules filling the cavities in contrast to the potassium-free 3D anhydrous NH4Zn(OOCCH(OH)PO3) (NH4Zn-HPAA-3D). In the range of temperature studied, the 1D materials exhibit a 1D → 2D solid-state transition. At 80 °C and 95 % RH, the 2D solids show moderate proton conductivities, between 2.1 × 10 − 5 S·cm − 1 and 6.7 × 10− 5 S·cm− 1. The proton conductivity is slightly increased by ammonia adsorption up to 2.6 × 10 − 4 S·cm − 1, although no ammonia intercalation was observed. As synthesized KZn6-HPAA-3D exhibits a low proton conductivity, 1.6 × 10− 6 S·cm− 1, attributed to the basic character of the framework and a low mobility of water molecules. However, this solid transforms to the 2D phase, Zn(OOCCH(OH)PO3H)·2H2O, upon exposure to dry HCl(g), which enhances the proton conductivity with respect to the as-synthesized 2D material (4.5 × 10− 4 S·cm− 1). On the other hand, NH4Zn-HPAA-3D exhibited a higher proton conductivity, 1.4 × 10− 4 S·cm− 1, than the K+ analog.es_ES
dc.description.sponsorshipProyecto MAT2013-41836-R del MINECO y proyecto P12-FQM-1656 de la Junta de Andalucíaes_ES
dc.language.isoenges_ES
dc.publisherDe Gruyteres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectConductividad eléctricaes_ES
dc.subjectSemimetaleses_ES
dc.subjectPolímeros organometálicoses_ES
dc.subjectQuímica del estado sólidoes_ES
dc.subject.otherPOC-16es_ES
dc.subject.otherCoordination polymerses_ES
dc.subject.otherMetal phosphonateses_ES
dc.subject.otherProton-conductivityes_ES
dc.subject.otherSolid-state chemistryes_ES
dc.titleStructural variability in M2+ 2-hydroxyphosphonoacetate moderate proton conductorses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.identifier.doi10.1515/pac-2016-1003
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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