High-performance activated carbon from polyaniline for capacitive deionization

dc.contributor.authorZornitta, Rafael L.
dc.contributor.authorGarcía-Mateos, Francisco J.
dc.contributor.authorLado, Julio J.
dc.contributor.authorRodríguez-Mirasol, José
dc.contributor.authorCordero, Tomás
dc.contributor.authorHammer, Peter [UNESP]
dc.contributor.authorRuotolo, Luis A.M.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversity of Málaga
dc.contributor.institution(Electrochemical Processes Unit)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:33:18Z
dc.date.available2018-12-11T17:33:18Z
dc.date.issued2017-10-01
dc.description.abstractActivated 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.en
dc.description.affiliationDepartment of Chemical Engineering Federal University of São Carlos, Rod. Washington Luiz km 235
dc.description.affiliationDepartment of Chemical Engineering University of Málaga Campus de El Ejido
dc.description.affiliationMadrid Institute for Advanced Studies IMDEA Energy (Electrochemical Processes Unit)
dc.description.affiliationInstitute of Chemistry São Paulo State University – UNESP, Rua Prof. Francisco Degni, s/n
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University – UNESP, Rua Prof. Francisco Degni, s/n
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2015/16107-4
dc.description.sponsorshipIdCNPq: 2015/26593-3
dc.format.extent318-333
dc.identifierhttp://dx.doi.org/10.1016/j.carbon.2017.07.071
dc.identifier.citationCarbon, v. 123, p. 318-333.
dc.identifier.doi10.1016/j.carbon.2017.07.071
dc.identifier.file2-s2.0-85025819651.pdf
dc.identifier.issn0008-6223
dc.identifier.lattes6466841023506131
dc.identifier.orcid0000-0002-3823-0050
dc.identifier.scopus2-s2.0-85025819651
dc.identifier.urihttp://hdl.handle.net/11449/179049
dc.language.isoeng
dc.relation.ispartofCarbon
dc.relation.ispartofsjr2,226
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleHigh-performance activated carbon from polyaniline for capacitive deionizationen
dc.typeArtigo
unesp.author.lattes6466841023506131(6)
unesp.author.orcid0000-0002-3823-0050(6)

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