High-performance activated carbon from polyaniline for capacitive deionization
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.carbon.2017.07.071 http://hdl.handle.net/11449/179049 |
Resumo: | Activated carbons prepared using polyaniline (PAni), a N-containing precursor, doped with different anions were successfully employed in this work as electrode materials for capacitive deionization. The aim of this research was to investigate the effect of chloride (Cl−), p-toluenesulfonate (PTS−), dodecylbenze-sulfonate (DBS−) and polystirenesulfonate (PSS−) as PAni dopants on the textural and electrochemical properties of PAni activate carbon (PAC) and evaluate their performance for desalination. It was demonstrated that textural PAC properties such as microporosity could be properly tuned, resulting in a suitable proportion of micro- and mesoporosity by using different doping anions. Furthermore, it was observed that the higher the oxygen content the higher the electrode hidrophilicity due to introduction of surface polar groups, as identified by XPS. These groups were found to be the most important variable influencing on the PAC electrosorption capacity and energy efficiency. The highest specific adsorption capacity (14.9 mg g−1), along with the lowest specific energy consumption, was obtained using the PTS-doped PAC electrode. Considering its high capacity, low-cost and ease of synthesis, PAC/PTS seems to be a promising electrode for CDI. |
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High-performance activated carbon from polyaniline for capacitive deionizationActivated carbons prepared using polyaniline (PAni), a N-containing precursor, doped with different anions were successfully employed in this work as electrode materials for capacitive deionization. The aim of this research was to investigate the effect of chloride (Cl−), p-toluenesulfonate (PTS−), dodecylbenze-sulfonate (DBS−) and polystirenesulfonate (PSS−) as PAni dopants on the textural and electrochemical properties of PAni activate carbon (PAC) and evaluate their performance for desalination. It was demonstrated that textural PAC properties such as microporosity could be properly tuned, resulting in a suitable proportion of micro- and mesoporosity by using different doping anions. Furthermore, it was observed that the higher the oxygen content the higher the electrode hidrophilicity due to introduction of surface polar groups, as identified by XPS. These groups were found to be the most important variable influencing on the PAC electrosorption capacity and energy efficiency. The highest specific adsorption capacity (14.9 mg g−1), along with the lowest specific energy consumption, was obtained using the PTS-doped PAC electrode. Considering its high capacity, low-cost and ease of synthesis, PAC/PTS seems to be a promising electrode for CDI.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Chemical Engineering Federal University of São Carlos, Rod. Washington Luiz km 235Department of Chemical Engineering University of Málaga Campus de El EjidoMadrid Institute for Advanced Studies IMDEA Energy (Electrochemical Processes Unit)Institute of Chemistry São Paulo State University – UNESP, Rua Prof. Francisco Degni, s/nInstitute of Chemistry São Paulo State University – UNESP, Rua Prof. Francisco Degni, s/nFAPESP: 2015/16107-4CNPq: 2015/26593-3Universidade Federal de São Carlos (UFSCar)University of Málaga(Electrochemical Processes Unit)Universidade Estadual Paulista (Unesp)Zornitta, Rafael L.García-Mateos, Francisco J.Lado, Julio J.Rodríguez-Mirasol, JoséCordero, TomásHammer, Peter [UNESP]Ruotolo, Luis A.M.2018-12-11T17:33:18Z2018-12-11T17:33:18Z2017-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article318-333application/pdfhttp://dx.doi.org/10.1016/j.carbon.2017.07.071Carbon, v. 123, p. 318-333.0008-6223http://hdl.handle.net/11449/17904910.1016/j.carbon.2017.07.0712-s2.0-850258196512-s2.0-85025819651.pdf64668410235061310000-0002-3823-0050Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCarbon2,226info:eu-repo/semantics/openAccess2023-11-01T06:14:40Zoai:repositorio.unesp.br:11449/179049Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-01T06:14:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
High-performance activated carbon from polyaniline for capacitive deionization |
title |
High-performance activated carbon from polyaniline for capacitive deionization |
spellingShingle |
High-performance activated carbon from polyaniline for capacitive deionization Zornitta, Rafael L. |
title_short |
High-performance activated carbon from polyaniline for capacitive deionization |
title_full |
High-performance activated carbon from polyaniline for capacitive deionization |
title_fullStr |
High-performance activated carbon from polyaniline for capacitive deionization |
title_full_unstemmed |
High-performance activated carbon from polyaniline for capacitive deionization |
title_sort |
High-performance activated carbon from polyaniline for capacitive deionization |
author |
Zornitta, Rafael L. |
author_facet |
Zornitta, Rafael L. García-Mateos, Francisco J. Lado, Julio J. Rodríguez-Mirasol, José Cordero, Tomás Hammer, Peter [UNESP] Ruotolo, Luis A.M. |
author_role |
author |
author2 |
García-Mateos, Francisco J. Lado, Julio J. Rodríguez-Mirasol, José Cordero, Tomás Hammer, Peter [UNESP] Ruotolo, Luis A.M. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) University of Málaga (Electrochemical Processes Unit) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Zornitta, Rafael L. García-Mateos, Francisco J. Lado, Julio J. Rodríguez-Mirasol, José Cordero, Tomás Hammer, Peter [UNESP] Ruotolo, Luis A.M. |
description |
Activated carbons prepared using polyaniline (PAni), a N-containing precursor, doped with different anions were successfully employed in this work as electrode materials for capacitive deionization. The aim of this research was to investigate the effect of chloride (Cl−), p-toluenesulfonate (PTS−), dodecylbenze-sulfonate (DBS−) and polystirenesulfonate (PSS−) as PAni dopants on the textural and electrochemical properties of PAni activate carbon (PAC) and evaluate their performance for desalination. It was demonstrated that textural PAC properties such as microporosity could be properly tuned, resulting in a suitable proportion of micro- and mesoporosity by using different doping anions. Furthermore, it was observed that the higher the oxygen content the higher the electrode hidrophilicity due to introduction of surface polar groups, as identified by XPS. These groups were found to be the most important variable influencing on the PAC electrosorption capacity and energy efficiency. The highest specific adsorption capacity (14.9 mg g−1), along with the lowest specific energy consumption, was obtained using the PTS-doped PAC electrode. Considering its high capacity, low-cost and ease of synthesis, PAC/PTS seems to be a promising electrode for CDI. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-01 2018-12-11T17:33:18Z 2018-12-11T17:33:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.carbon.2017.07.071 Carbon, v. 123, p. 318-333. 0008-6223 http://hdl.handle.net/11449/179049 10.1016/j.carbon.2017.07.071 2-s2.0-85025819651 2-s2.0-85025819651.pdf 6466841023506131 0000-0002-3823-0050 |
url |
http://dx.doi.org/10.1016/j.carbon.2017.07.071 http://hdl.handle.net/11449/179049 |
identifier_str_mv |
Carbon, v. 123, p. 318-333. 0008-6223 10.1016/j.carbon.2017.07.071 2-s2.0-85025819651 2-s2.0-85025819651.pdf 6466841023506131 0000-0002-3823-0050 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carbon 2,226 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
318-333 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964784361209856 |