The Use of NiFe2O4 and CoFe2O4 Nanoparticles Produced by Green Synthesis as Electrode Material for Supercapacitors

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dc.authoridAKDAG, ABDURRAHMAN/0000-0001-5292-8001
dc.authoridBAYTAR, ORHAN/0000-0002-2915-202X
dc.contributor.authorBaytar, Orhan
dc.contributor.authorEkinci, Arzu
dc.contributor.authorSahin, Omer
dc.contributor.authorAkdag, Abdurrahman
dc.date.accessioned2024-12-24T19:24:22Z
dc.date.available2024-12-24T19:24:22Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this report, for the first time, we have applied green synthesized NiFe2O4 and CoFe2O4 nanoparticles as electrode materials for supercapacitors (SCs). Bean pods extracts were used for the green synthesis of NiFe2O4 and CoFe2O4 nanoparticles. The structure and morphology of the samples were characterized by fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). From XRD analysis, it was determined that NiFe2O4 and CoFe2O4 nanoparticles had a crystalline structure. EDX analysis confirms the presence of carbon and the stoichiometries of NiFe2O4 and CoFe2O4 . In TEM analyses, it was determined that the sizes of nanoparticles varied in the range of 5-20 nm. The FTIR spectra supported the presence of Fe-O, Ni-O, and Co-O bonds. Electrochemical measurements of active materials were performed using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy techniques in a 1 M H2SO4 solution. It was determined that the specific capacitance value of NiFe2O4 (129 F/g) was higher than that of CoFe2O4 (106 F/g). The cyclic stability of CoFe2O4 and NiFe2O4 was found to be 59 and 106 % retention at the end of 10000 cycles, respectively. The specific capacitance value and very good cyclic stability of NiFe2O4 showed that it is a good active substance that can be used in supercapacitor applications.
dc.identifier.doi10.1002/slct.202304491
dc.identifier.issn2365-6549
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85194588190
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1002/slct.202304491
dc.identifier.urihttps://hdl.handle.net/20.500.12604/5938
dc.identifier.volume9
dc.identifier.wosWOS:001174424100001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofChemistryselect
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectSupercapacitor
dc.subjectenergy storage
dc.subjectNiFe2O4
dc.subjectCoFe2O4
dc.subjectnanoparticles
dc.titleThe Use of NiFe2O4 and CoFe2O4 Nanoparticles Produced by Green Synthesis as Electrode Material for Supercapacitors
dc.typeArticle

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