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Improving the Electrochemical Performance of Carbon Filaments by Solvent Cleansing

Published online by Cambridge University Press:  15 February 2011

Xiaoping Shui ,
Christine A. Frysz  and
D. D. L. Chung
Xiaoping Shui
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14260-4400
Christine A. Frysz
Affiliation:
Wilson Greatbatch, Ltd., 10,000 Wehrle Drive, Clarence, New York 14031
D. D. L. Chung
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14260-4400
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Abstract

Found inherent in the submicron-diameter vapor-grown carbon filament fabrication process was a tarry residue, which comprised polyaromatic hydrocarbons. Cyclic voltammetry conducted using carbon working electrodes and an iron cyanide electrolyte showed that the residue harmed the electrochemical performance. Removal of the residue from the filaments using a solvent resulted in increases in the electron transfer rate (to values as high as 0.2 cm/s) and reversibility of the iron cyanide redox species, increase in the packing density and decrease in the filament-filament contact electrical resistivity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 393: Symposium W – Materials for Electrochemical Energy Storage and Conversion , 1995 , 315
Copyright
Copyright © Materials Research Society 1995

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References

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