Show simple item record

dc.creatorStevanović, Sanja
dc.creatorPanić, Vladimir
dc.creatorDekanski, Aleksandar
dc.creatorJovanović, Vladislava
dc.date.accessioned2020-05-14T08:07:11Z
dc.date.available2020-05-14T08:07:11Z
dc.date.issued2010
dc.identifier.isbn978-86-7132-044-3
dc.identifier.urihttp://www.aseee.eu/index.php/rsesee2-home
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3541
dc.description.abstractCarbon materials, due to their physical and chemical properties, have found wide application in different electrochemical systems. They are often used as substrates for supercapacitors and different types of electrocatalysts. Upon activation, their electrochemical properties are improved. Glassy carbon can be successfully used as a model for studying the process of carbon activation. In this work, the activation of glassy carbon by electrochemical oxidation in sulfuric acid was investigated using cyclic voltammetry, electrochemical impedance spectroscopy and atomic force microscopy. Glassy carbon was oxidized during the same time at 5 different potentials. Cyclic voltammetry shows that the higher the potential the larger the increase in double layer capacitance is. Impedance measurements confirmed significant changes in capacitive response of activated glassy carbon in comparison to unoxidized state. AFM examination of treated GC surfaces revealed morphological changes and increase in roughness upon oxidation. If combined, the results of these studies show that the activation of glassy carbon proceeds through three stages: oxidation of active site, growing of graphite oxide layer and mechanical destruction of the surface.sr
dc.language.isoensr
dc.publisherSerbian Chemical Society, Belgradesr
dc.rightsopenAccesssr
dc.sourceSecond Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedingssr
dc.subjectCarbon materialssr
dc.subjectActivation of glassy carbonsr
dc.subjectElectrochemical oxidationsr
dc.titleAC Impedance tracking of glassy carbon activationsr
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dcterms.abstractПанић, Владимир; Декански, Aлександар; Јовановић, Владислава; Стевановић, Сања;
dc.citation.spage154
dc.citation.epage157
dc.description.otherBelgrade, Serbia, June 6-10, 2010sr
dc.description.otherRelated to the [http://cer.ihtm.bg.ac.rs/handle/123456789/3540]
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs/bitstream/id/16501/rSE_SEE_7proc.pdf
dc.type.versionpublishedVersionsr


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record