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High Surface Area Metal Carbide and Metal Nitride Electrodes

Published online by Cambridge University Press:  10 February 2011

M. R. Wixom ,
D. J. Tarnowski ,
J. M. Parker ,
J. Q. Lee ,
P.-L. Chen ,
I. Song  and
L. T. Thompson
M. R. Wixom
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
D. J. Tarnowski
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
J. M. Parker
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
J. Q. Lee
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
P.-L. Chen
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
I. Song
Affiliation:
T/J Technologies, Inc., P.O. Box 2150, Ann Arbor, MI 48106
L. T. Thompson
Affiliation:
University of Michigan, Department of Chemical Engineering, Ann Arbor, MI 48109–2136
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Abstract

Processes for fabricating new high surface area ceramic electrode materials have been developed. These electrode materials have been applied in electrochemical capacitors and related energy storage and conversion devices. Several synthetic approaches have been developed for producing high surface area carbide or nitride active materials. The fabrication methods provide the capability to vary the composition and microstructure of the electrode material. A number of new candidate high surface area electrode materials have been synthesized. Compositional and microstructural information is presented. Electrodes have been evaluated by cyclic voltammetry, chronopotentiometry, and impedance spectroscopy in acidic and basic aqueous electrolyte systems. Single electrode and single cell performance data are presented. Intrinsic properties such as open circuit potential, electrochemical stability and specific capacitance are discussed with respect to electrode composition. The influence on performance of extrinsic factors such as electrode thickness, particle size, and pore structure is also discussed. The performance of these new materials is compared to carbon, with emphasis on advantages with respect to volumetric energy and power density.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 496: Symposium Y – Materials For Electrochemical Energy Storage & Conversion II… , 1997 , 643
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

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