Surface and chemical characteristics of platinum modified activated carbon electrodes and their electrochemical performance

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dc.contributor.authorYumak, Tugrul
dc.contributor.authorYumak, Serap
dc.contributor.authorKarabulut, Abdulkerim
dc.date.accessioned2025-03-23T19:26:07Z
dc.date.available2025-03-23T19:26:07Z
dc.date.issued2021
dc.departmentSinop Üniversitesi
dc.description.abstractPlatinum (Pt) loaded activated carbons (ACs) were synthesized by the thermal decomposition of platinum (II) acetylaceton ate (Pt(acac)(2)) over chemically activated glucose-based biochar. The effect of Pt loading on surface area, pore characteristics, surface chemistry, chemical structure, and surface morphology were determined by various techniques. XPS studies proved the presence of metallic Pt-0 on the AC surface. The graphitization degree of Pt loaded ACs were increased with the loaded Pt-0 amount. The electrochemical performance of the Pt-loaded ACs (Pt@AC) was determined not only by the conventional three-electrode system but also by packaged supercapacitors in CR2032 casings. The capacitive performance of Pt@AC electrodes was investigated via cyclic voltammetry (CV), galvanostatic charge-discharge curves (GCD), and impedance spectroscopy (EIS). It was found that the Pt loading increased the specific capacitance from 51 F/g to 100 F/g. The ESR drop of the packaged cell decreased with the Pt loading due to the fast flow of charge through the conductive pathways. The results showed that the surface chemistry is more dominant than the surface area for determining the capacitive performance of Pt loaded AC-based packaged supercapacitors.
dc.description.sponsorshipSinop University Scientific Research Projects Coordination Unit [FEF-1901-16-13]
dc.description.sponsorshipThis work was supported by Sinop University Scientific Research Projects Coordination Unit under Project Number, FEF-1901-16-13. We would like to thank Dr. Riza Bayrak (Sinop University) for his valuable contribution to the discussion section. We also acknowledge the use of East Anatolia High Technology Application and Research Center (DAYTAM) for materials characterization.
dc.identifier.doi10.3906/kim-2103-14
dc.identifier.endpage1503
dc.identifier.issn1300-0527
dc.identifier.issue5
dc.identifier.pmid34849062
dc.identifier.scopus2-s2.0-85117586352
dc.identifier.scopusqualityQ3
dc.identifier.startpage1488
dc.identifier.trdizinid527498
dc.identifier.urihttps://doi.org/10.3906/kim-2103-14
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/527498
dc.identifier.urihttps://hdl.handle.net/11486/4636
dc.identifier.volume45
dc.identifier.wosWOS:000709117200016
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectActivated carbon
dc.subjectpackaged supercapacitors
dc.subjectPt modified activated carbons
dc.subjectcharacteristics of metal-activated carbon composites
dc.titleSurface and chemical characteristics of platinum modified activated carbon electrodes and their electrochemical performance
dc.typeArticle

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