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dc.contributor.authorPérez Madrigal, Mª del Mar
dc.contributor.authorEdo, Miquel G.
dc.contributor.authorDíaz Andrade, Angélica María
dc.contributor.authorPuiggalí Bellalta, Jordi
dc.contributor.authorAlemán Llansó, Carlos
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2017-05-12T10:29:25Z
dc.date.available2018-01-18T01:30:28Z
dc.date.issued2017-02-16
dc.identifier.citationPérez-Madrigal, Maria M., Edo, M., Diaz, A., Puiggali, J., Aleman, C. Poly-y-glutamic Acid Hydrogels as Electrolyte for Poly(3,4-ethylenedioxythiophene)-Based Supercapacitors. "Journal of Physical Chemistry C", 16 Febrer 2017, vol. 121, núm. 6, p. 3182-3193.
dc.identifier.issn1932-7455
dc.identifier.urihttp://hdl.handle.net/2117/104353
dc.description.abstractBiosynthetic poly-¿-glutamic acid (¿-PGA) has been used to produce hydrogels using cystamine as cross-linker and 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide methiodide (EDC methiodide) as condensing agent. Eight different hydrogels with different properties were formulated by varying both the molecular weight of ¿-PGA and the ¿-PGA/EDC/cystamine ratio and subsequently characterized. The most appropriate ¿-PGA hydrogel was selected to perform as solid electrolytic medium in organic electrochemical supercapacitors (OESCs) using poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes based on their mechanical behavior (consistency and robustness to hold the PEDOT electrodes), morphology, and influence on the electrochemical response of the organic electrode (i.e., specific capacitance and both maximum energy and power density values). Hence, PEDOT/¿-PGA energy storage devices fabricated using the most adequate hydrogel formulation displayed a supercapacitor response of 168 F/g and a capacitance retention of 81%. Moreover, after evaluating the maximum energy and power densities (Ragone plot), cyclability, long-term stability, leakage current, and self-discharging response of PEDOT/¿-PGA OESC devices, results allow us to highlight the merits and great potential of ¿-PGA hydrogels as sustainable ion-conductive electrolytes for environmentally friendly energy storage technologies.
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshColloids
dc.subject.lcshPolymers
dc.titlePoly-y-glutamic Acid Hydrogels as Electrolyte for Poly(3,4-ethylenedioxythiophene)-Based Supercapacitors
dc.typeArticle
dc.subject.lemacPolímers
dc.subject.lemacBioquímica
dc.contributor.groupUniversitat Politècnica de Catalunya. PSEP - Polimers Sintètics: Estructura i Propietats. Polimers Biodegradables.
dc.contributor.groupUniversitat Politècnica de Catalunya. IMEM - Innovació, Modelització i Enginyeria en (BIO) Materials
dc.identifier.doi10.1021/acs.jpcc.6b10693
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b10693
dc.rights.accessOpen Access
local.identifier.drac19809774
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PE/MAT2015-69367-R
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PE/MAT2015-69547-R
local.citation.authorPérez-Madrigal, Maria M.; Edo, M.; Diaz, A.; Puiggali, J.; Aleman, C.
local.citation.publicationNameJournal of Physical Chemistry C
local.citation.volume121
local.citation.number6
local.citation.startingPage3182
local.citation.endingPage3193


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain