Ionic Conductivity and Potential Application for Fuel Cell of a Modified Imine-Based Covalent Organic Framework

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Show simple item record Montoro, Carmen Rodríguez-San-Miguel, David Polo, Eduardo Escudero-Cid, Ricardo Ruiz-González, Maria Luisa Navarro, Jorge A.R. Ocón, Pilar Zamora, Félix
dc.contributor.other UAM. Departamento de Química Física Aplicada es_ES
dc.contributor.other UAM. Departamento de Química Inorgánica es_ES 2019-10-17T12:34:23Z 2019-10-17T12:34:23Z 2017-07-26
dc.identifier.citation Journal of the American Chemical Society 139.29 (2017): 10079-10086 en_US
dc.identifier.issn 1520-5126 (online) en_US
dc.identifier.issn 0002-7863 (print) en_US
dc.description This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see en_US
dc.description.abstract We present the novel potential application of imine-based covalent organic frameworks (COFs), formed by the direct Schiff reaction between 1,3,5-tris(4-aminophenyl)benzene and 1,3,5-benzenetricarbaldehyde building blocks in m-cresol or acetic acid, named RT-COF-1 or RT-COF-1Ac/RT-COF-1AcB. The post-synthetic treatment of RT-COF-1 with LiCl leads to the formation of LiCl@RT-COF-1. The ionic conductivity of this series of polyimine COFs has been characterized at variable temperature and humidity, using electrochemical impedance spectroscopy. LiCl@RT-COF-1 exhibits a conductivity value of 6.45 × 10-3 S cm-1 (at 313 K and 100% relative humidity) which is among the highest values so far reported in proton conduction for COFs. The mechanism of conduction has been determined using 1H and 7Li solid-state nuclear magnetic resonance spectroscopy. Interestingly, these materials, in the presence of controlled amounts of acetic acid and under pressure, show a remarkable processability that gives rise to quasi-transparent and flexible films showing in-plane structural order as confirmed by X-ray crystallography. Finally, we prove that these films are useful for the construction of proton exchange membrane fuel cells (PEMFC) reaching values up to 12.95 mW cm-2 and 53.1 mA cm-2 for maximum power and current density at 323 K, respectively en_US
dc.description.sponsorship We thank the MINECO (Spain) for financial support through Juan de la Cierva postdoctoral fellowship. We thank the Spanish Ministry of Economy (MAT2016-77608-C3-1-P, MAT2013-46753-C2-1-P, CTQ2014-53486-R, ENE2016-77055-C3-1-R), and Comunidad de Madrid (S2013/MAE2882) for generous funding en_US
dc.format.extent 10 pag. en_US
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher American Chemical Society en_US
dc.relation.ispartof Journal of the American Chemical Society en_US
dc.rights © 2017 American Chemical Society en_US
dc.subject.other Covalent organic frameworks en_US
dc.subject.other Ionic conductivity en_US
dc.subject.other Porous crystalline materials en_US
dc.subject.other Proton exchange membranes en_US
dc.subject.other Thin films en_US
dc.title Ionic Conductivity and Potential Application for Fuel Cell of a Modified Imine-Based Covalent Organic Framework en_US
dc.type article en
dc.subject.eciencia Química es_ES 2018-07-26
dc.relation.publisherversion es_ES
dc.identifier.doi 10.1021/jacs.7b05182 es_ES
dc.identifier.publicationfirstpage 10079 es_ES
dc.identifier.publicationissue 29 es_ES
dc.identifier.publicationlastpage 10086 es_ES
dc.identifier.publicationvolume 139 es_ES
dc.relation.projectID Gobierno de España. MAT2016-77608-C3-1-P es_ES
dc.relation.projectID Gobierno de España. MAT2013-46753-C2-1-P es_ES
dc.relation.projectID Gobierno de España. CTQ2014-53486-R es_ES
dc.relation.projectID Gobierno de España. ENE2016-77055-C3-1-R es_ES
dc.relation.projectID Comunidad de Madrid. S2013/MAE-2882/RESTOENE-2 es_ES
dc.type.version info:eu-repo/semantics/acceptedVersion en
dc.rights.accessRights openAccess en
dc.authorUAM Montoro Cano, María Del Carmen (271798)
dc.authorUAM Rodríguez San Miguel, David (265015)
dc.authorUAM Escudero Cid, Ricardo (262280)
dc.authorUAM Ocón Esteban, Pilar (259228)
dc.authorUAM Zamora Abanades, Félix Juan (258846)

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