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dc.creatorDojčinović, Milena
dc.creatorVasiljević, Zorka Z
dc.creatorTadic, Nenad
dc.creatorKrstic, Jugoslav
dc.creatorNikolić, Maria Vesna
dc.date.accessioned2023-01-12T11:43:50Z
dc.date.available2023-01-12T11:43:50Z
dc.date.issued2022
dc.identifier.isbn978-83-942760-9-6
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/1617
dc.description.abstractTransition metal oxides (TMOs) are promising materials because of their specific properties enabling their application in energy solutions, such as their pseudocapacitive behavior enabling utilization as electrode materials in supercapacitors. Activated carbon is a material well known as an electric double layer capacitor (EDLC). Bringing together the two different capacitor materials- TMOs as pseudocapacitors and carbon materials as EDL capacitors is the goal for generating future generation supercapacitors. Nickel manganite is a material of interest because of various oxidation states of manganese which provide its reactivity in oxidoreduction reactions, enhancing the pseudocapacitive behavior. Herein, we synthesized nano-sized nickel manganite by a sol-gel combustion synthesis process using glycine as fuel and subsequent calcination process. The structure and morphology of synthesized material was investigated via XRD, FESEM, and FTIR spectroscopy. Specific surface area and was determined from measured nitrogen desorption/desorption isotherms. Activated carbon was obtained by pyrolytic carbonization of alginate hydrogel in nitrogen atmosphere and activation with KOH. The material was combined with synthesized NiMn2O4 nanopowder and tested as supercapacitor electrode. The second alternative was incorporating NiMn2O4 powder into alginate hydrogel, followed by pyrolysis in nitrogen atmosphere to obtain a NiMn2O4 -activated carbon composite. The obtained materials were electrochemically characterized with cyclic voltammetry (LV) and galvanostatic chronopotentiometry to get galvanostatic charge-discharge curves. We calculated high specific capacitance values ranging to several hundred F/g, showing our hybrid material is a promising electrode in a supercapacitor system.sr
dc.language.isoensr
dc.publisherKrakow : Agencja Reklamowa EURO GRAPHICsr
dc.publisherKrakow : Polskie Towarzystwo Ceramicznesr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceAbstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022sr
dc.subjectnickelsr
dc.subjectmanganesesr
dc.subjectoxidesr
dc.subjectsynthesissr
dc.subjectcharacterizationsr
dc.subjectsupercapacitorsr
dc.subjectalginatesr
dc.subjectactivated carbonsr
dc.titleAlginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitorssr
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dc.citation.spage404
dc.identifier.fulltexthttp://rimsi.imsi.bg.ac.rs/bitstream/id/4002/bitstream_4002.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_rimsi_1617
dc.type.versionpublishedVersionsr


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