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

Alexandr V. Shchegolkov; Mikhail Chayka; Evgeny V. Galunin; Alexey V. Shchegolkov; Nariman R. Memetov; Alexey G. Tkachev

doi:10.4028/www.scientific.net/MSF.845.259

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Influence of the Thermal Stabilization Conditions on the Structural Transformation of the Polyacrylonitrile Fiber
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Clusters of Discrete Breathers in Carbon and Hydrocarbon Nanostructures
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Studies on Highly Porous Graphene-Like Structures as Electrode Material for Supercapacitors
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Search the Hard Magnetic Tetrataenite Phase in the Fragments of Chelyabinsk Meteorite
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HomeMaterials Science ForumMaterials Science Forum Vol. 845Studies on Highly Porous Graphene-Like Structures...

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

Abstract:

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.

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Periodical:

Materials Science Forum (Volume 845)

Pages:

259-262

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.845.259

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Online since:

March 2016

Authors:

Alexandr V. Shchegolkov*, Mikhail Chayka, Evgeny V. Galunin, Alexey V. Shchegolkov, Nariman R. Memetov, Alexey G. Tkachev

Keywords:

Cyclic Current-Voltage Curves, Electrical Double Layer, Graphene, Impedance, Research Techniques, Supercapacitor, Voltammetry

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