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In Situ Raman Scattering Studies of the Electrochemical Intercalation of Graphite in Sulfuric Acid

Published online by Cambridge University Press:  15 February 2011

C.H. Olk ,
V. Yeh ,
F.J. Holler  and
P.C. Eklund
C.H. Olk
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY, USA
V. Yeh
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY, USA
F.J. Holler
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY, USA
P.C. Eklund
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY, USA
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Abstract

In situ Raman scattering studies of the high-frequency carbon intralayer modes in graphite-H2SO4 have been carried out during the electrochemical intercalation of graphite in sulfuric acid. The data show that within an optical depth of ∼ 200 Å the entire c-face undergoes a sudden transition to the next lower stage (n−1) at the moment when the bulk has just completed forming stage n. Raman data collected in the “overcharge” and “overoxidation” regimes of the electrochemical synthesis indicate rapid shifting of the peaks during these times, indicating a significant increase in the oxidation of the carbon layers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 20: Symposium H – Intercalated Graphite , 1982 , 259
Copyright
Copyright © Materials Research Society 1983

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References

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