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Bi-intercalation of H2SO4 into stages 4–6 FeCl3–graphite intercalation compounds

Published online by Cambridge University Press:  31 January 2011

Yasuo Mizutani ,
Takeshi Abe ,
Mitsuru Asano  and
Toshio Harada
Yasuo Mizutani
Affiliation:
Institute of Atomic Energy, Kyoto University, Uji, Kyoto 611, Japan
Takeshi Abe
Affiliation:
Institute of Atomic Energy, Kyoto University, Uji, Kyoto 611, Japan
Mitsuru Asano
Affiliation:
Institute of Atomic Energy, Kyoto University, Uji, Kyoto 611, Japan
Toshio Harada
Affiliation:
Institute of Atomic Energy, Kyoto University, Uji, Kyoto 611, Japan
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Abstract

Stages 4–6 FeCl3–graphite intercalation compounds (GIC's) have been prepared by an ordinary two-bulb method, and the bi-intercalation processes of H2SO4 into the GIC's have been studied by x-ray diffraction. Since stages 4–6 FeCl3–GIC's have more than three vacant interlayer spaces in the c-axis repeat distance, the bi-intercalation of H2SO4 into the GIC's takes place stepwise. Consequently, various FeCl3–H2SO4–graphite bi-intercalation compounds (GBC's), from the GBC's with one H2SO4 layer to the GBC's saturated with H2SO4, are obtained in the bi-intercalation processes. Their compositions are described as C6.0nFeCl3 · c(6.0/6.5)H2SO4 from the calculation of structure factor for x-ray diffraction, where n is the stage number of the starting FeCl3-GIC's, and c is the number of H2SO4 layers. Stacking sequences of all the FeCl3–H2SO4–GBC's are also determined.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 7 , July 1993 , pp. 1586 - 1595
Copyright
Copyright © Materials Research Society 1993

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References

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