Graphite Intercalation Compounds

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Abstract
Graphiteintercalation compounds are synthetic metals formed by inserting layers of atoms or molecules of a guest chemical species between the layers of carbon atoms that make up graphite. Because carbon occupies a middle position in the order of electronegativity of the elements in the periodic table, graphite welcomes many chemicals as guests, or intercalants, making it possible to produce hundreds of metallic materials. (See figure 1.) Physicists are producing synthetic metals with made‐to‐order structural, magnetic, electronic and superconducting properties by inserting guest atoms between the planes of carbon atoms that make up graphite.