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Effect of surfactants on capacitance properties of carbon electrodes

Published online by Cambridge University Press:  12 October 2011

Krzysztof Fic ,
Grzegorz Lota  and
Elzbieta Frackowiak
Krzysztof Fic
Affiliation:
Poznan University of Technology, Institute of Chemistry and Technical Electrochemistry, Piotrowo 3, 60965 Poznan, Poland
Grzegorz Lota
Affiliation:
Poznan University of Technology, Institute of Chemistry and Technical Electrochemistry, Piotrowo 3, 60965 Poznan, Poland
Elzbieta Frackowiak
Affiliation:
Poznan University of Technology, Institute of Chemistry and Technical Electrochemistry, Piotrowo 3, 60965 Poznan, Poland
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Abstract

Effect of surfactants present in alkaline solutions on the capacitance of carbon electrodes has been studied. Different types of surfactants have been selected for this target. Concentration of these electrolyte additives was 0.005 mol L-1. Decreasing the surface tension in the electrode/electrolyte interface allows better penetration of electrolyte into the pores. Detailed analysis of capacitance versus current load, frequency dependence as well as self-discharge, cyclability and behaviour in wider voltage window proved a useful effect of Triton X-100 on capacitor operating in alkaline solution. Influence of surfactant concentration has also been investigated.

Keywords

thin filmsurface chemistryenergy storage
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1333: Symposium M – Nanostructured Materials for Energy Storage , 2011 , mrss11-1333-m11-07
Copyright
Copyright © Materials Research Society 2011

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References

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