D. Sarmeo et al., Intercalation of manganese chloride into mesophase pitch-based graphite fibers via gaseous complexes, CARBON, 39(13), 2001, pp. 2049-2058
The intercalation of certain metal chlorides into carbon fibers presents so
me problems, which depend on both their structure (three-dimensional orderi
ng in particular) and the intercalation techniques. In this work. the inter
calation of manganese chloride into pitch-based carbon fibers was investiga
ted. The use of manganese chloride in the presence of iron(III) chloride or
copper(II) chloride enhances the vapor pressure of the manganese salt and
thus makes easier the intercalation process. The results of this work confi
rm the existence of FeCl3-MnCl2 complexes in the gaseous phase during inter
calation. Stage-I intercalation compounds have been obtained for different
graphite fibers. Several experimental techniques were used to characterize
both the pristine and the intercalated graphite fibers, including X-ray dif
fraction, Raman spectroscopy and electrical resistivity measurements. (C) 2
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