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dc.contributor.authorCabeza-Diaz, Aurelio 
dc.contributor.authorColodrero, Rosario M. P.
dc.contributor.authorBazaga-García, Montse
dc.contributor.authorHernández Alonso, Daniel
dc.contributor.authorCompaña Prieto, José Manuel
dc.contributor.authorOlivera-Pastor, Pascual 
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorAranda, Miguel A. G.
dc.contributor.authorLeón-Reina, Laura
dc.date.accessioned2014-06-25T12:02:53Z
dc.date.available2014-06-25T12:02:53Z
dc.date.created2014-06-25
dc.date.issued2014-06-25
dc.identifier.urihttp://hdl.handle.net/10630/7727
dc.description.abstractThe necessity of energy and power generation is constantly growing. Fossils fuels are quickly becoming unsatisfactory substrates due to both their emission of pollutants and their finite expectancy. Fuel cells are one of the best alternatives as they are clean, durable, and highly efficient 1. MOFs will be attractive candidates for this application because of their tuneable pore size functionality as well as their chemical and thermal stability and presence of acidic protons within their structure2. In the present work, we report the syntheses, crystal structural and proton conductivities of various metal phosphonate derivatives, using both rigid (5-(dihydroxyphosphoryl)isophthalic acid, PiPhtA and 2-hydroxyphosphonoacetic acid, HPAA) and flexible (hexa- or octamethylenediamine-N,N,N′,N′-tetrakis-(methylenephosphonic acid, H8HDTMP or H8ODTMP) multifunctional ligands. These materials show 3D open-frameworks containing 1D channels decorated with phosphonic and carboxylic acid groups and filled with hydrogen bonded water molecules what make them good candidates as proton conductors. For instance, Ca-PiPhtA, containing a rigid ligand, exhibits a proton conductivity of 5.7•10-4 S/cm which increases to 6.6•10-3 S/cm when the sample is exposed to ammonia vapors3. Other magnesium or lanthanides metal phosphonates, built with flexible ligands, show conductivities values range between 1.6 10-3 S/cm (for MgODTMP4) and 8.6 10-3 S/cm (for LaHDTMP5) at T=292K at ~100% relative humidity, and activation energies values typically attributed to a Grotthuss mechanism.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectConductividad eléctricaes_ES
dc.subject.otherMOFses_ES
dc.subject.otherFuel Cellses_ES
dc.subject.otherProton conductivityes_ES
dc.subject.otherHybrid materialses_ES
dc.subject.otherMetal phosphonateses_ES
dc.titleProton Conductors based on Metal Phosphonate Hybrid Materials for PEM Fuel Cellses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitleWorkshop on "Materials and Catalysis for Clean Energy"es_ES
dc.relation.eventplaceTorremolinos (Málaga)es_ES
dc.relation.eventdate23 al 24 junio de 2014es_ES


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