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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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.

Original languageEnglish
Title of host publicationPhase Transitions, Critical and Nonlinear Phenomena in Condensed Matter, PTCNPCM 2015
EditorsVasiliy Buchelnikov, Vladimir Sokolovskiy, Mikhail Zagrebin, Vladimir Sokolovskiy
PublisherTrans Tech Publications Ltd
Pages259-262
Number of pages4
ISBN (Print)9783038356493
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventInternational Conference on Phase Transitions, Critical and Nonlinear Phenomena in Condensed Matter, PTCNPCM 2015 - Chelyabinsk, Russian Federation
Duration: 24 Aug 201528 Aug 2015

Publication series

NameMaterials Science Forum
Volume845
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceInternational Conference on Phase Transitions, Critical and Nonlinear Phenomena in Condensed Matter, PTCNPCM 2015
CountryRussian Federation
CityChelyabinsk
Period24.8.1528.8.15

Keywords

  • Cyclic current-voltage curves
  • Electrical double layer
  • Graphene
  • Impedance
  • Research techniques
  • Supercapacitor
  • Voltammetry

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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