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Preparation, structure, and electrical conductivity of fluorine-graphite intercalation compound

โœ Scribed by T. Nakajima; T. Ino; N. Watanabe; H. Takenaka

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
496 KB
Volume
26
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

The rate of fluorine intercalation in graphite is larger in the present system than in other metal fluorides examined previously. X-ray diffraction data indicate that C,F belongs to a hexagonal system with a superlattice of a, = 2a, in the ab plane, accompanying some amount of a bi-intercalation phase. Lattice parameters of stage 3 C,,,,F were n, = 4.921 A, c,, = 12.733 A, and those for stage 3 C,,F were a, = 4.918 A, co = 12.817 A. The difference in lattice parameters arises from the increase in electron transfer from carbon to fluorine. The ideal composition of C,F is expressed as C,,F (n = stage number). The highest electrical conductivity is given at stage 3, being 2.3 x lo4 km-', which is about eight times a pristine pitch fiber.

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