Comparison of the electrochemical properties of engineered switchgrass biomass-derived activated carbon-based EDLCs

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dc.authoridOginni, Oluwatosin/0000-0001-6077-8218
dc.contributor.authorYumak, Tugrul
dc.contributor.authorYakaboylu, Gunes A.
dc.contributor.authorOginni, Oluwatosin
dc.contributor.authorSingh, Kaushlendra
dc.contributor.authorCiftyurek, Engin
dc.contributor.authorSabolsky, Edward M.
dc.date.accessioned2025-03-23T19:41:51Z
dc.date.available2025-03-23T19:41:51Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractActivated carbon-based electrodes with high surface area were synthesized by direct and indirect chemical activation of switchgrass biomass and its biochar, and decorated with MnO2 in order to enhance and compare the capacitive performance of the fabricated supercapacitors. N-2 physisorption, Raman, XPS and SEM techniques were used to examine the differences in the microstructure and surface characteristics of biomass-derived activated carbon samples and MnO2 loaded samples. All fabricated supercapacitors were highly stable and showed high-rate capacitive performance. Direct KOH and H3PO4 activation increased the specific surface area up to 1272 and 1373 m(2)/g, respectively. As a result, the capacitive performance increased from 50 to 140 F/g for directly KOH activated biomass, and from 49 to 95 F/g for directly H3PO4 activated biomass. MnO2 loading led to an increase in specific capacitance (110 F/g) for the KOH activated biochar, even though no significant effect was observed for the H3PO4 activated biochar. The effectiveness of direct chemical activation of the biomass to enhance the electrochemical performance of the fabricated supercapacitors was demonstrated by comparing it with pseudocapacitive material loading (MnO2) and indirect chemical activation of biochars.
dc.description.sponsorshipWest Virginia University (WVU) Energy Institute through the O'Brien Energy Research Fund; Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2219 Postdoctoral Research Program
dc.description.sponsorshipThe West Virginia University (WVU) Energy Institute through the O'Brien Energy Research Fund supported this work. Dr. Yumak acknowledges the financial support from the Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2219 Postdoctoral Research Program. We acknowledge use of the West Virginia University Shared Research Facilities (WVU-SRF). The authors also acknowledge Dr. Marcela Redigolo (WVU-SRF) and Dr. Qiang Wang (WVU-SRF) for their assistance on materials characterization. We also thank Katarzyna Sabolsky (WVU) for her help with the lab work and the characterization.
dc.identifier.doi10.1016/j.colsurfa.2019.124150
dc.identifier.issn0927-7757
dc.identifier.issn1873-4359
dc.identifier.scopus2-s2.0-85075900941
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.colsurfa.2019.124150
dc.identifier.urihttps://hdl.handle.net/11486/6665
dc.identifier.volume586
dc.identifier.wosWOS:000504350600121
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofColloids and Surfaces A-Physicochemical and Engineering Aspects
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectWaste biomass
dc.subjectSupercapacitors
dc.subjectChemical activation
dc.subjectBiochar modification
dc.subjectActivated carbon
dc.titleComparison of the electrochemical properties of engineered switchgrass biomass-derived activated carbon-based EDLCs
dc.typeArticle

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