Synthesis, characterization and electrical resistivity of graphite bi-intercalation compounds G-FeCl3-MCl3 (M = Al, Ga, In) and the related binaries
✍ Scribed by N.E. Nadi; E. McRae; J.F. Marêché; M. Lelaurain; A. Hérold
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 934 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
We present new chemical. crystallographic and electrical conductivity data concerning the title compounds. It is found that the ;_' axis repeat distances of the bi-intercalation compounds (GBC) are almost identical to the sum of the interplanar distances of the associated binary compounds. The basal plane resistivity p. decreases upon intercalation of the second halide into the stage two, binary host: p. -5 -+ 1 &t cm at 295 K and p20Jp,2 < 10 for the GaCI,-and AlCl,-containing GBC. The T axis resistivity possesses a positive temperature coefficient for all compounds examined except the 4th stage FeCI, GIC. The room temperature anisotropy is -10" for 1st and 4th stage Gael, GIC as for low stage AsF, materials. Chemically determined values of the charge transfer are about twice as great as those evaluated from analysis of-the C-C bond distances