Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/35965
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dc.contributor.authorOkhay, Olenapt_PT
dc.contributor.authorTkach, Alexanderpt_PT
dc.date.accessioned2023-01-24T11:21:44Z-
dc.date.available2023-01-24T11:21:44Z-
dc.date.issued2022-08-
dc.identifier.issn2079-4991pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/35965-
dc.description.abstractThe current development of clean and high efficiency energy sources such as solar or wind energy sources has to be supported by the design and fabrication of energy storage systems. Electrochemical capacitors (or supercapacitors (SCs)) are promising devices for energy storage thanks to their highly efficient power management and possible small size. However, in comparison to commercial batteries, SCs do not have very high energy densities that significantly limit their applications. The value of energy density directly depends on the capacitance of full SCs and their cell voltage. Thus, an increase of SCs electrode specific capacitance together with the use of the wide potential window electrolyte can result in high performance SCs. Conductive polymer polyaniline (PANI) as well as carbonaceous materials graphene (G) or reduced graphene oxide (RGO) have been widely studied for usage in electrodes of SCs. Although pristine PANI electrodes have shown low cycling stability and graphene sheets can have low specific capacitance due to agglomeration during their preparation without a spacer, their synergetic effect can lead to high electrochemical properties of G/PANI composites. This review points out the best results for G/PANI composite in comparison to that of pristine PANI or graphene (or RGO). Various factors, such as the ratio between graphene and PANI, oxidants, time, and the temperature of chemical oxidative polymerization, which have been determined to influence the morphology, capacitance, cycling stability, etc. of the composite electrode materials measured in three-electrode system are discussed. Consequently, we provide an in-depth summary on diverse promising approaches of significant breakthroughs in recent years and provide strategies to choose suitable electrodes based on PANI and graphene.pt_PT
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.02284.CEECIND%2FCP1659%2FCT0018/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPolymerpt_PT
dc.subjectGraphenept_PT
dc.subjectGeduced graphene oxidept_PT
dc.subjectCompositespt_PT
dc.subjectChemical oxidative polymerizationpt_PT
dc.subjectSupercapacitorspt_PT
dc.subjectElectrodespt_PT
dc.subjectSpecific capacitancept_PT
dc.subjectPANIpt_PT
dc.subjectCycling stabilitypt_PT
dc.titleSynergetic Effect of Polyaniline and Graphene in Their Composite Supercapacitor Electrodes: Impact of Components and Parameters of Chemical Oxidative Polymerizationpt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.issue15pt_PT
degois.publication.titleNanomaterialspt_PT
degois.publication.volume12pt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2079-4991/12/15/2531pt_PT
dc.identifier.doi10.3390/nano12152531pt_PT
dc.identifier.essn2079-4991pt_PT
dc.identifier.articlenumber2531pt_PT
Appears in Collections:TEMA - Artigos
CICECO - Artigos

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