Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOT
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Otros documentos de la autoría: Fuentes, Isabel; Mostazo-López, María José; Kelemen, Dr. Zsolt; Compañ, Vicente; Andrio, Andreu; Morallón, Emilia; Cazorla-Amoros, Diego; Viñas, Clara; Teixidor, Francesc
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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Título
Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOTAutoría
Fecha de publicación
2019-11-13Editor
WileyISSN
0947-6539; 1521-3765Cita bibliográfica
FUENTES, Isabel, et al. Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOT. Chemistry–A European Journal, 2019, 25.63: 14308-14319Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201902708Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Conducting organic polymers (COPs) are made of a conjugated polymer backbone supporting a certain degree of oxidation. These positive charges are compensated by the doping anions that are introduced into the polymer ... [+]
Conducting organic polymers (COPs) are made of a conjugated polymer backbone supporting a certain degree of oxidation. These positive charges are compensated by the doping anions that are introduced into the polymer synthesis along with their accompanying cations. In this work, the influence of these cations on the stoichiometry and physicochemical properties of the resulting COPs have been investigated, something that has previously been overlooked, but, as here proven, is highly relevant. As the doping anion, metallacarborane [Co(C2B9H11)2]− was chosen, which acts as a thistle. This anion binds to the accompanying cation with a distinct strength. If the binding strength is weak, the doping anion is more prone to compensate the positive charge of the polymer, and the opposite is also true. Thus, the ability of the doping anion to compensate the positive charges of the polymer can be tuned, and this determines the stoichiometry of the polymer. As the polymer, PEDOT was studied, whereas Cs+, Na+, K+, Li+, and H+ as cations. Notably, with the [Co(C2B9H11)2]− anions, these cations are grouped into two sets, Cs+ and H+ in one and Na+, K+, and Li+ in the second, according to the stoichiometry of the COPs: 2:1 EDOT/[Co(C2B9H11)2]− for Cs+ and H+, and 3:1 EDOT/[Co(C2B9H11)2]− for Na+, K+, and Li+. The distinct stoichiometries are manifested in the physicochemical properties of the COPs, namely in the electrochemical response, electronic conductivity, ionic conductivity, and capacitance. [-]
Descripción
This is the pre-peer reviewed version of the following article: Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOT, which has been published in final ... [+]
This is the pre-peer reviewed version of the following article: Are the Accompanying Cations of Doping Anions Influential in Conducting Organic Polymers? The Case of the Popular PEDOT, which has been published in final form at https://doi.org/10.1002/chem.201902708. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. [-]
Publicado en
Chemistry–A European Journal, 2019, vol. 25, no 63Proyecto de investigación
Generalitat de Catalunya. Grant Number: 2014/SGR/149; Ministerio de Economía y Competitividad. Grant Numbers: CTQ2016-75150-R, ENE/2015-69203-R H2020; Marie Skłodowska-Curie Actions. Grant Number: MSCA-IF-2016-751587Derechos de acceso
Copyright © John Wiley & Sons
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