Showing papers on "Graphene published in 1991"
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TL;DR: In this article, a first-stage NiCl2 graphite intercalation compound (GIC) was prepared using very fine natural graphite powder under a high chlorine pressure and at high temperature.
2 citations
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TL;DR: The structure and phase transitions of the 1st stage organo-alkali graphitide are mainly determined by the interactions between the three components: alkali ion, organic molecule and graphene layer as mentioned in this paper.
Abstract: The structure and the phase transitions of the 1st stage organo-alkali graphitide are mainly determined by the interactions between the three components: alkali ion, organic molecule and graphene layer. By changing the nature of the molecule, the relative intensities of these forces are modified. Using non polar molecules, the alkali-graphitic plane interaction is predominant, limiting the thickness of the intercalated layer and only order-disorder transitions of this layer are observed. When polar molecules-like THF are intercalated, the molecule-alkali interaction is increased and the parameter of the final compound is mainly determined by the structure of “complexes” which are formed in the intercalated layer. However, the graphene layer can also influence the organisation of the compound by modifying the structure of these complexes (with the molecule-graphene plane interaction) or by their elastic properties which decorrelate the plane at low temperature in Cs(THF)1.7C24. Various phase trans...
2 citations
01 Jan 1991
TL;DR: In this paper, the stacking strutcure of the intercalated metallic layers between the graphene planes was studied and a knowledge of stacking strut-cure was obtained for three ternary graphite-potassium-thallium phases.
Abstract: Systematic study of 00L reflexuions of three ternary graphite-potassium-thallium phases led to a knowledge of the stacking strutcure of the intercalated metallic layers between the graphene planes.
1 citations