Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry

This work describes a two-step process for the electrochemical coating of reduced graphene oxide (RGO) and polyaniline (PANI) onto an activated carbon cloth (ACC) by cyclic voltammetry (CV). The fact that the two syntheses are carried out independently of each other, makes it possible to select the...

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Authors: Fernández Sáez, Javier, Del Río García, Ana Isabel, Bonastre Cano, José Antonio|||0000-0002-5068-6608, Molina Puerto, Javier|||0000-0003-3378-8271, Cases, Francisco|||0000-0001-8105-4489
Format: article
Publication Date:2017
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/82578
Online Access:https://riunet.upv.es/handle/10251/82578
Access Level:Open access
Keyword:Activated carbon cloth
Reduced graphene oxide
Polyaniline
Aniline adsorption
Capacitance
QUIMICA FISICA
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spelling Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetryFernández Sáez, JavierDel Río García, Ana IsabelBonastre Cano, José Antonio|||0000-0002-5068-6608Molina Puerto, Javier|||0000-0003-3378-8271Cases, Francisco|||0000-0001-8105-4489Activated carbon clothReduced graphene oxidePolyanilineAniline adsorptionCapacitanceQUIMICA FISICAThis work describes a two-step process for the electrochemical coating of reduced graphene oxide (RGO) and polyaniline (PANI) onto an activated carbon cloth (ACC) by cyclic voltammetry (CV). The fact that the two syntheses are carried out independently of each other, makes it possible to select the experimental conditions for each one and to study the electrochemical response of RGO, PANI, and PANI onto RGO (RGOPANI), separately. Thus, by modifying the potential limits of the aniline-polymerization reaction, it was possible to observe the influence of RGO and the maximum amount of PANI that the carbon cloth can receive in terms of proper electrochemical response. Electrochemical properties were characterized by CV, galvanostatic charge-discharge curves (using three or two-electrodes symmetric cell configurations) and electrochemical impedance spectroscopy (EIS). A maximum improvement of 25%, 56% and 61% over the initial specific capacitance of ACC (about 129 F g−1) were obtained for RGO, PANI and RGOPANI coatings, respectively. Good cycling stability retaining 83% of the initial capacitance, after 1000 cycles stability test, was obtained for RGOPANI sample. Promising results of energy and power densities were also achieved. In the analyses by Fourier transform infrared spectroscopy (FTIR), the PANI-bands could be clearly identified which is indicative of a significant presence of PANI. Field emission scanning electron microscopy (FESEM) showed the morphology of RGO, PANI and RGOPANI onto the ACC fibers. These analyses helped to explain the electrochemical results.The authors wish to acknowledge to Chemviron Carbon who kindly donated the ZORFLEX (R) activated carbon fabric. The authors wish to thank the Spanish Agenda Estatal de Investigacion (AEI) and European Union (FEDER funds) for the financial support (contract MAT2016-77742-C2-1-P). Tim Vickers is gratefully acknowledged for help with the English revision.ElsevierDepartamento de Ingeniería Textil y PapeleraEscuela Politécnica Superior de AlcoyGrupo de Electrocatálisis, Síntesis Electroquímica y Caracterización de PolímerosMinisterio de Economía y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20172017-05-11journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/82578reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MAT2016-77742-C2-1-P DESARROLLO DE MATERIALES POROSOS 2D Y 3D CON APLICACIONES ELECTROQUIMICAS, CATALITICAS, TERMICAS Y BIOMEDICASopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/825782026-06-13T07:49:27Z
dc.title.none.fl_str_mv Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
title Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
spellingShingle Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
Fernández Sáez, Javier
Activated carbon cloth
Reduced graphene oxide
Polyaniline
Aniline adsorption
Capacitance
QUIMICA FISICA
title_short Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
title_full Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
title_fullStr Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
title_full_unstemmed Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
title_sort Study on the specific capacitance of an activated carbon cloth modified with reduced graphene oxide and polyaniline by cyclic voltammetry
dc.creator.none.fl_str_mv Fernández Sáez, Javier
Del Río García, Ana Isabel
Bonastre Cano, José Antonio|||0000-0002-5068-6608
Molina Puerto, Javier|||0000-0003-3378-8271
Cases, Francisco|||0000-0001-8105-4489
author Fernández Sáez, Javier
author_facet Fernández Sáez, Javier
Del Río García, Ana Isabel
Bonastre Cano, José Antonio|||0000-0002-5068-6608
Molina Puerto, Javier|||0000-0003-3378-8271
Cases, Francisco|||0000-0001-8105-4489
author_role author
author2 Del Río García, Ana Isabel
Bonastre Cano, José Antonio|||0000-0002-5068-6608
Molina Puerto, Javier|||0000-0003-3378-8271
Cases, Francisco|||0000-0001-8105-4489
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Textil y Papelera
Escuela Politécnica Superior de Alcoy
Grupo de Electrocatálisis, Síntesis Electroquímica y Caracterización de Polímeros
Ministerio de Economía y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Activated carbon cloth
Reduced graphene oxide
Polyaniline
Aniline adsorption
Capacitance
QUIMICA FISICA
topic Activated carbon cloth
Reduced graphene oxide
Polyaniline
Aniline adsorption
Capacitance
QUIMICA FISICA
description This work describes a two-step process for the electrochemical coating of reduced graphene oxide (RGO) and polyaniline (PANI) onto an activated carbon cloth (ACC) by cyclic voltammetry (CV). The fact that the two syntheses are carried out independently of each other, makes it possible to select the experimental conditions for each one and to study the electrochemical response of RGO, PANI, and PANI onto RGO (RGOPANI), separately. Thus, by modifying the potential limits of the aniline-polymerization reaction, it was possible to observe the influence of RGO and the maximum amount of PANI that the carbon cloth can receive in terms of proper electrochemical response. Electrochemical properties were characterized by CV, galvanostatic charge-discharge curves (using three or two-electrodes symmetric cell configurations) and electrochemical impedance spectroscopy (EIS). A maximum improvement of 25%, 56% and 61% over the initial specific capacitance of ACC (about 129 F g−1) were obtained for RGO, PANI and RGOPANI coatings, respectively. Good cycling stability retaining 83% of the initial capacitance, after 1000 cycles stability test, was obtained for RGOPANI sample. Promising results of energy and power densities were also achieved. In the analyses by Fourier transform infrared spectroscopy (FTIR), the PANI-bands could be clearly identified which is indicative of a significant presence of PANI. Field emission scanning electron microscopy (FESEM) showed the morphology of RGO, PANI and RGOPANI onto the ACC fibers. These analyses helped to explain the electrochemical results.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-05-11
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/82578
url https://riunet.upv.es/handle/10251/82578
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MAT2016-77742-C2-1-P DESARROLLO DE MATERIALES POROSOS 2D Y 3D CON APLICACIONES ELECTROQUIMICAS, CATALITICAS, TERMICAS Y BIOMEDICAS
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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