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Intercalation process in the ternary system of FeCl3-NiCl2-KCl

✍ Scribed by M Ohira; M Inagaki; Z.D Wang

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 609 KB
Volume: 30
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(92)90081-7

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✦ Synopsis

The intercalation process of FeCl, and NiClz into the natural graphite flakes with the average layer diameter of 400 pm was discussed on the basis of the chemical compositions of the compounds obtained in either the ternary system of FeCI,-NiCl,-KC1 or the binary system of FeCl,-NiCI, at 400°C. The intercalation of NiCI, was much faster in the ternary system than in the binary system. This difference was interpreted from the difference of the state of reaction system. After prolonged reaction in both reaction systems, the raio of Ni!Fe increased and the ratio of Cl/metals observed became a smaller value than that calculated by assuming the presence of Feel, and NiClz in the intercalate layer. On the basis of the experimental results, it was supposed that the exchange of Feel, intercalated at the beginning of reaction occurred for both Fe& which was formed by the disproportionation of FeC&, and NiCI,.

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