High frequency response of adenine-derived carbon in aqueous electrochemical capacitor

Electrochemical capacitors are attractive power sources, especially when they are able to operate at high frequency (high current regime). In order to meet this requirement their constituents should be made of high conductivity materials with a suitable porosity. In this study, enhanced power and si...

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Autores: Piwek, J., Slesinski, A., Fic, K., Aina, S., Vizintin, A., Tratnik, B., Tchernychova, E., Lobera, M. P., Bernechea, M., Dominko, R., Frackowiak, E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:131677
Acceso en línea:http://zaguan.unizar.es/record/131677
Access Level:acceso abierto
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spelling High frequency response of adenine-derived carbon in aqueous electrochemical capacitorPiwek, J.Slesinski, A.Fic, K.Aina, S.Vizintin, A.Tratnik, B.Tchernychova, E.Lobera, M. P.Bernechea, M.Dominko, R.Frackowiak, E.Electrochemical capacitors are attractive power sources, especially when they are able to operate at high frequency (high current regime). In order to meet this requirement their constituents should be made of high conductivity materials with a suitable porosity. In this study, enhanced power and simultaneously high capacitance (120 F g-1 at 1 Hz or 10 A g-1) electrode material obtained from carbonized adenine precursor is presented. A micro/mesoporous character of the carbon with optimal pore size ratio and high surface area was proven by the physicochemical characterization. The beneficial pore structure and morphology resembling highly conductive carbon black, together with a significant nitrogen content (5.5%) allow for high frequency response of aqueous capacitor to be obtained. The carbon/carbon symmetric capacitor (in 1 mol L-1 Li2SO4) has been tested to the voltage of 1.5 V. The cyclic voltammetry indicates a good electrochemical response even at high scan rate (50 mV s-1). The cyclability of the capacitor is comparable to the one operating with commercial carbon (YP50F). The adenine-based capacitor is especially favourable for stationary applications requiring high power.2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/131677reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MICIN PCI2019–103637/info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1316772026-05-29T13:59:51Z
dc.title.none.fl_str_mv High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
title High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
spellingShingle High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
Piwek, J.
title_short High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
title_full High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
title_fullStr High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
title_full_unstemmed High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
title_sort High frequency response of adenine-derived carbon in aqueous electrochemical capacitor
dc.creator.none.fl_str_mv Piwek, J.
Slesinski, A.
Fic, K.
Aina, S.
Vizintin, A.
Tratnik, B.
Tchernychova, E.
Lobera, M. P.
Bernechea, M.
Dominko, R.
Frackowiak, E.
author Piwek, J.
author_facet Piwek, J.
Slesinski, A.
Fic, K.
Aina, S.
Vizintin, A.
Tratnik, B.
Tchernychova, E.
Lobera, M. P.
Bernechea, M.
Dominko, R.
Frackowiak, E.
author_role author
author2 Slesinski, A.
Fic, K.
Aina, S.
Vizintin, A.
Tratnik, B.
Tchernychova, E.
Lobera, M. P.
Bernechea, M.
Dominko, R.
Frackowiak, E.
author2_role author
author
author
author
author
author
author
author
author
author
description Electrochemical capacitors are attractive power sources, especially when they are able to operate at high frequency (high current regime). In order to meet this requirement their constituents should be made of high conductivity materials with a suitable porosity. In this study, enhanced power and simultaneously high capacitance (120 F g-1 at 1 Hz or 10 A g-1) electrode material obtained from carbonized adenine precursor is presented. A micro/mesoporous character of the carbon with optimal pore size ratio and high surface area was proven by the physicochemical characterization. The beneficial pore structure and morphology resembling highly conductive carbon black, together with a significant nitrogen content (5.5%) allow for high frequency response of aqueous capacitor to be obtained. The carbon/carbon symmetric capacitor (in 1 mol L-1 Li2SO4) has been tested to the voltage of 1.5 V. The cyclic voltammetry indicates a good electrochemical response even at high scan rate (50 mV s-1). The cyclability of the capacitor is comparable to the one operating with commercial carbon (YP50F). The adenine-based capacitor is especially favourable for stationary applications requiring high power.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/131677
url http://zaguan.unizar.es/record/131677
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MICIN PCI2019–103637/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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