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dc.creatorKaluđerović, Branka V.
dc.creatorJovanovic, Vladislava M.
dc.creatorStevanovic, Sanja I.
dc.creatorBogdanov, Žarko
dc.date.accessioned2018-03-01T23:55:04Z
dc.date.available2018-03-01T23:55:04Z
dc.date.issued2014
dc.identifier.issn1350-4177 (print)
dc.identifier.issn1873-2828 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/5837
dc.description.abstractAn ultrasonic irradiation was applied for the impregnation by chemical agents in the chemical activation process of new type of active carbon precursor. Plane tree seed, due to the unique fibrous structure and low cost is a promising eco-friendly raw material for the preparation of activated carbon materials. Ultrasonic irradiation was used for the impregnation step allowing the chemical activation by different agents: potassium or sodium hydroxide, hydrogen peroxide and pyrogallol. The porous structures were examined by nitrogen adsorption/desorption isotherms at 77 K and electrochemically by cyclic voltammetry. The textures of these materials were observed by scanning electron microscopy. The application of ultrasonic irradiation in the impregnation step increased surface area of the final material more than two times in comparison to the material which impregnation in the activation process was by conventional stirring. Ultrasonic irradiation enhances the chemical activation process and the activated carbon fibrous materials with nanoporous structure were obtained by impregnation of seeds with alkaline hydroxides. Total surface areas of these samples were 976 m(2) g(-1), and 1130 m(2) g(-1). These fibers have total specific capacitance as high as 125 F g(-1) and 53 F g(-1) which major fraction in both cases originate from internal micropores structure. (C) 2013 Elsevier B.V. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172060/RS//
dc.rightsrestrictedAccessen
dc.sourceUltrasonics Sonochemistryen
dc.subjectUltrasonic irradiationen
dc.subjectChemical activationen
dc.subjectCarbon fibrous materialen
dc.subjectAdsorption characteristicsen
dc.subjectCapacitanceen
dc.titleCharacterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiationen
dc.typearticleen
dcterms.abstractЈовановиц, Владислава М.; Стевановиц, Сања И.; Калуђеровић Бранка В.; Богданов Жарко;
dc.citation.volume21
dc.citation.issue2
dc.citation.spage782
dc.citation.epage789
dc.identifier.wos000329771500043
dc.identifier.doi10.1016/j.ultsonch.2013.09.004
dc.citation.rankM21a
dc.identifier.pmid24094648
dc.identifier.scopus2-s2.0-84888137049


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