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Synthesis and proton conduction properties of lanthanide amino-sulfophosphonates
dc.contributor.author | Cabeza-Díaz, Aurelio | |
dc.contributor.author | Bazaga-García, Montse | |
dc.contributor.author | Pérez-Colodrero, Rosario Mercedes | |
dc.contributor.author | Salcedo, Inés R. | |
dc.contributor.author | Villemin, Didier | |
dc.contributor.author | Olivera-Pastor, Pascual | |
dc.contributor.author | Losilla, Enrique R. | |
dc.date.accessioned | 2016-06-28T07:50:53Z | |
dc.date.available | 2016-06-28T07:50:53Z | |
dc.date.created | 2016 | |
dc.date.issued | 2016 | |
dc.identifier.uri | http://hdl.handle.net/10630/11677 | |
dc.description.abstract | Crystalline acid-functionalized metal phosphonates are potential candidates as proton conducting electrolytes. Their frameworks can be chemically modified to contain proton carriers such as acidic groups (P-OH; -SO3H, -COOH,…) and guest molecules (H2O, NH3,…) that generates hydrogen bond networks stable in a wide range of temperature [1,2]. In this work, focus is laid on properties derived from the combination of lanthanide ions with the amino-sulfophosphonate ligand (H2O3PCH2)2-N-(CH2)2-SO3H. Hightrough-put screening was followed to reach the optimal synthesis conditions under solvothermal conditions at 140 ºC. Isolated polycrystalline solids, Ln[(O3PCH2)2-NH-(CH2)2-SO3H].2H2O (Ln= La, Pr and Sm), crystallize in the monoclinic (La) and orthorhombic (Pr and Sm) systems with unit cell volume of ~2548 Å3. Preliminary proton conductivity measurements for Sm derivative have been carried out between 25º and 80 ºC at relative humidity (RH) values of 70 % and 95 %. The sample exhibits enhanced conductivity at high RH and T (Figure 1) and constant activation energies of 0.4 eV, typical of a Grothuss mechanism of proton. | es_ES |
dc.description.sponsorship | Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. FQM-1656; MAT2013-41836-R | es_ES |
dc.language.iso | spa | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Polímeros | es_ES |
dc.subject.other | Polymers | es_ES |
dc.subject.other | phosphonates | es_ES |
dc.subject.other | metal organic frameworks | es_ES |
dc.subject.other | polymers synthesis | es_ES |
dc.subject.other | Coordination Polymers | es_ES |
dc.title | Synthesis and proton conduction properties of lanthanide amino-sulfophosphonates | es_ES |
dc.type | info:eu-repo/semantics/conferenceObject | es_ES |
dc.centro | Facultad de Ciencias | es_ES |
dc.relation.eventtitle | 6th International Conference “Polymers and Organic Chemistry (POC-16) | es_ES |
dc.relation.eventplace | Creta (Grecia) | es_ES |
dc.relation.eventdate | Junio 2016 | es_ES |
dc.cclicense | by-nc-nd | es_ES |