Proton conductive Zr-Phosphonate UPG-1-Aminoacid insertion as proton carrier stabilizer

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dc.contributor.author Vilela, Sergio M.F.
dc.contributor.author Salcedo Abraira, Pablo
dc.contributor.author Gómez Peña, Alejandro
dc.contributor.author Trens, Philippe
dc.contributor.author Varez, Alejandro
dc.contributor.author Salles, Fabrice
dc.contributor.author Horcajada, Patricia
dc.date.accessioned 2020-10-22T09:10:57Z
dc.date.available 2020-10-22T09:10:57Z
dc.date.issued 2020-07-31
dc.identifier.bibliographicCitation Molecules, (2020), 25(15), 3519, [16] p.
dc.identifier.issn 1420-3049
dc.identifier.uri http://hdl.handle.net/10016/31271
dc.description.abstract Proton exchange membrane fuel cells (PEMFCs) are an attractive green technology for energy generation. The poor stability and performances under working conditions of the current electrolytes are their major drawbacks. Metal-Organic Frameworks (MOFs) have recently emerged as an alternative to overcome these issues. Here, we propose a robust Zr-phosphonate MOF (UPG-1) bearing labile protons able to acta priorias an efficient electrolyte in PEMFCs. Further, in an attempt to further enhance the stability and conductivity of UPG-1, a proton carrier (the amino acid Lysine, Lys) was successfully encapsulated within its porosity. The behaviors of both solids as an electrolyte were investigated by a complete experimental (impedance spectroscopy, water sorption) and computational approach (MonteCarlo, water sorption). Compared with the pristine UPG-1, the newly prepared Lys@UPG-1 composite showed similar proton conductivity but a higher stability, which allows a better cyclability. This improved cyclability is mainly related to the different hydrophobic-hydrophilic balance of the Lys@UPG-1 and UPG-1 and the steric protection of the reactive sites of the MOF by the Lys.
dc.description.sponsorship This research was funded by Raphuel project (ENE2016-79608-C2-1-R, MINECO-AEI/FEDER, UE), a 2017 Leonardo Grant for Researchers and Cultural Creators BBVA Foundation (PolyMOF) and the Ramón Areces Fundation project H+MOFs. PH acknowledges the Spanish Ramon y Cajal Programme (2014-16823). SMFV thanks to the Spanish Ministerio de Educación, Cultura y Deporte for “José Castillejo” mobility programme (Ref. CAS18/00470)
dc.format.extent 16
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Metal-organic frameworks
dc.subject.other Proton carriers
dc.subject.other Lysine
dc.subject.other Ion conductivity
dc.title Proton conductive Zr-Phosphonate UPG-1-Aminoacid insertion as proton carrier stabilizer
dc.type article
dc.description.status Publicado
dc.subject.eciencia Materiales
dc.identifier.doi https://doi.org/10.3390/molecules25153519
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. ENE2016-79608-C2-1-R
dc.relation.projectID Gobierno de España. CAS18/00470
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 15(3519)
dc.identifier.publicationlastpage 16
dc.identifier.publicationtitle Molecules
dc.identifier.publicationvolume 25
dc.identifier.uxxi AR/0000026058
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.contributor.funder Ministerio de Educación, Cultura y Deporte (España)
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