PANI-grafted radially porous MnO2 for supercapacitor applications

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dc.authorid0000-0002-6340-3064
dc.authorid0000-0001-5807-633X
dc.contributor.authorSinan-Tatli, Neriman
dc.contributor.authorUnur-Yilmaz, Ece
dc.date.accessioned2026-02-08T15:14:56Z
dc.date.available2026-02-08T15:14:56Z
dc.date.issued2024
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractIn this study, manganese carbonate (MnCO3) microspheres were used as self-templates for the synthesis of hollow and radially porous MnO2 via an oxidation-etching process. Then, in situ polymerization of aniline was conducted with and without 3-aminopropyl triethoxysilane (APTES) grafting agent, resulting in the formation of PANI-grafted MnO2 (MGP) and PANI-coated MnO2 (MP), respectively. The electrochemical performances were evaluated in a three-electrode configuration using a 1 M H2SO4 aqueous electrolyte solution. Both samples showed high-specific capacitances owing to the unique MnO2 structure with radial cavities, which facilitate ion diffusion and effectively accommodate volume expansion during cycling. The MGP exhibited similar to 30% higher specific capacitance (765 F g(-1) and 586 F g(-1) at 0.25 A g(-1)) and extended cycle life (80% retention after 14,000 cycles) compared to the MP. The results demonstrate that the charge transfer efficiency and structural stability of MGP are enhanced by the formation of covalent bonds between MnO2 and PANI through grafting.
dc.description.sponsorshipBursa Technical University
dc.description.sponsorshipThe authors would like to acknowledge that this paper is submitted in partial fulfilment of the requirements for PhD degree at Bursa Technical University.
dc.identifier.doi10.1007/s10008-024-05822-9
dc.identifier.endpage2603
dc.identifier.issn1432-8488
dc.identifier.issn1433-0768
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85183653392
dc.identifier.scopusqualityQ2
dc.identifier.startpage2593
dc.identifier.urihttps://doi.org/10.1007/s10008-024-05822-9
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5505
dc.identifier.volume28
dc.identifier.wosWOS:001153621300001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Solid State Electrochemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectMnCO3
dc.subjectMnO2
dc.subjectPANI grafting
dc.subjectSelf-template
dc.subjectSupercapacitors
dc.titlePANI-grafted radially porous MnO2 for supercapacitor applications
dc.typeArticle

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