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Electrochemical Behavior of Carbon Aerogels Derived From Different Precursors

Published online by Cambridge University Press:  15 February 2011

R.W. Pekala ,
C.T. Alviso ,
J.K. Nielsen ,
T.D. Tran ,
G.A.M. Reynolds  and
M.S. Dresselhaus
R.W. Pekala
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
C.T. Alviso
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
J.K. Nielsen
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
T.D. Tran
Affiliation:
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
G.A.M. Reynolds
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
M.S. Dresselhaus
Affiliation:
Chemistry & Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
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Abstract

The ability to tailor the structure and properties of porous carbons has led to their increased use as electrodes in energy storage devices. Our research focuses on the synthesis and characterization of carbon aerogels for use in electrochemical double layer capacitors. Carbon aerogels are formed from the sol-gel polymerization of (1) resorcinol-formaldehyde or (2) phenolic-furfural, followed by supercritical drying from carbon dioxide, and subsequent pyrolysis in an inert atmosphere. These materials can be produced as monoliths, composites, thin films, powders, or microspheres. In all cases, the aerogels have an open-cell structure with an ultrafine pore size (<100 nm), high surface area (400-1100 m2/g), and a solid matrix composed of interconnected particles, fibers, or platelets with characteristic dimensions of 10 nm. This paper examines the effects of the carbon precursor and processing conditions on electrochemical performance in aqueous and organic electrolytes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 393: Symposium W – Materials for Electrochemical Energy Storage and Conversion , 1995 , 413
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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