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  1. RePhyChem
  2. Research Outputs
  3. Journal Article
Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/2341
DC FieldValueLanguage
dc.contributor.authorPesqueira, Camilaen_US
dc.contributor.authorHryniewicz, Bruna M.en_US
dc.contributor.authorKlobukoski, Vanessaen_US
dc.contributor.authorWeheabby, Saddamen_US
dc.contributor.authorKanoun, Olfaen_US
dc.contributor.authorRüffer, Tobiasen_US
dc.contributor.authorPašti, Igoren_US
dc.contributor.authorVidotti, Marcioen_US
dc.date.accessioned2024-11-05T15:25:07Z-
dc.date.available2024-11-05T15:25:07Z-
dc.date.issued2024-10-01-
dc.identifier.urihttps://dspace.ffh.bg.ac.rs/handle/123456789/2341-
dc.description.abstractEnhancing the supercapacitors’ performance relies on the increased capacitance and voltage window, which are the current key challenges for developing new materials. In this study, the mononuclear NiII-bis(oxamato) complex ([nBu4N]2[Ni(opba)], 1) has been synthesized and used as a template in polypyrrole (PPy) based conductive polymer as a novel electrode material for supercapacitor applications. The surface and structural properties of PPy and PPy/1 electrodes were studied using SEM and TEM to elucidate their interactions. The results of characterization techniques revealed that complex 1 altered the morphology, creating a prominent three-dimensional globular structure in the PPy/1 hybrid material without significant chemical modification. The electrochemical properties of PPy and PPy/1 were investigated by CV, EIS, and GCD analyses. The PPy/1 electrode demonstrated intense pseudocapacitive behavior, showing a significantly widened potential window and increased current compared to the PPy electrode, resulting in enhanced energy storage capacity within the material. This improvement was evaluated by testing a symmetric supercapacitor in a coin cell architecture with an alginate-based gel acting as both electrolyte and separator. The maximum specific cell capacitance reached 41.6 F g−1 at a current density of 0.2 A g−1, with a remarkable capacity retention of 97 % after 1000 galvanostatic charge/discharge cycles.en_US
dc.relation.ispartofChemElectroChemen_US
dc.subjectBis(oxamato)en_US
dc.subjectElectropolymerizationen_US
dc.subjectHydride materialsen_US
dc.subjectNickel (II) complexen_US
dc.subjectPolypyrroleen_US
dc.subjectSupercapacitoren_US
dc.titleEnhancement of the Potential Window of Ppy Electrodes in the Presence of a Bis(Oxamato) Nickel(II) Complex for High-Performance Supercapacitoren_US
dc.typeArticleen_US
dc.identifier.doi10.1002/celc.202400384-
dc.identifier.scopus2-s2.0-85203684985-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85203684985-
dc.relation.issue19en_US
dc.relation.volume11en_US
item.cerifentitytypePublications-
item.openairetypeArticle-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
crisitem.author.orcid0000-0002-1000-9784-
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry