Studies on Highly Porous Graphene-Like Structures as Electrode Material for Supercapacitors

The paper presents studies on highly porous graphene-like structures as an electrode material for supercapacitors. The experimental research was performed in inorganic (3 M sulfuric acid) and organic (1 M tetraethylammonium tetrafluoroborate in acetonitrile) electrolytes. It was found that in the in...

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Bibliographic Details
Published inMaterials science forum Vol. 845; pp. 259 - 262
Main Authors Galunin, Evgeny V., Tkachev, Alexey G., Chayka, Mikhail, Memetov, Nariman R., Shchegolkov, Alexandr V., Shchegolkov, Alexey V.
Format Journal Article
LanguageEnglish
Published Pfaffikon Trans Tech Publications Ltd 01.03.2016
Subjects
Research Techniques
Cyclic Current-Voltage Curves
Graphene
Supercapacitor
Voltammetry
Impedance
Electrical Double Layer
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Summary:The paper presents studies on highly porous graphene-like structures as an electrode material for supercapacitors. The experimental research was performed in inorganic (3 M sulfuric acid) and organic (1 M tetraethylammonium tetrafluoroborate in acetonitrile) electrolytes. It was found that in the inorganic medium the electrodes made on the basis of graphene-like structures possess higher specific capacitance. When increasing the potential scan rate from 5 to 100 mV/s the “electrode-electrolyte” system lost 40-80% of the capacitance. The cyclic current-voltage curves obtained for the organic electrolyte were more strongly distorted when increasing the potential scan rate, which might be related to more severe transport limitations imposed on large organic ions.
Bibliography:Selected, peer reviewed papers from the International Conference “Phase transitions, critical and nonlinear phenomena in condensed matter”, August 24-28, 2015, Chelyabinsk, Russia
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.845.259