Title: Capacity of a glassy carbon electrode in propylene carbonate based electrolytes
Authors: Vondrák, Jiří
Sedlaříková, Marie
Macalík, Michal
Velická, Jana
Citation: Electroscope. 2010, č. 4.
Issue Date: 2011
Publisher: Západočeská univerzita v Plzni, Fakulta elektrotechnická
Document type: článek
ISSN: 1802-4564
Keywords: skelný uhlík;bezvodné solné roztoky;propylenkarbonát;elektrochemické superkondenzátory
Keywords in different language: glassy carbon;aprotic salt solutions;propylencarbonate;electrochemical supercapacitors
Abstract in different language: The capacity of glassy carbon in aprotic salt solutions in propylene carbonate (PC) is investigated as an approach to the optimalisation of electrochemical supercapacitors. The strong influence of water residuum on capacities at negative potentials is indicated. The capacities exhibit a shallow minimum at potential from 0 V to +0.5 V (vss. Cd/Cd2+ reference electrode) and they increase with increasing electrolyte concentration. The admittance of the electrode in pure PC (as received) is by 2 – 3 orders of magnitude smaller. Undoubtedly, the properties of ions in solution influence the capacity by a factor not exceeding 2 to 5.
Rights: Copyright © 2007-2010 Electroscope. All Rights Reserved.
Appears in Collections:Číslo 4 (2010)
Číslo 4 (2010)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/591

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