Lamellar compounds of graphite with transition metals. Graphite as a ligand

Reduction of MoCl5Graphite Intercalation Compounds by Heavy Alkali Metal Vapour

“…The change from potassium to cesium provokes a significant increase in the abundance of the two-dimensional phases and a simultaneous decrease in that of the three-dimensional phases. These results wholly confirm those previously obtained by Hérold et al [4][5][6] concerning the reduction of FeCl3 and CoCl2 graphite intercalation compounds by heavy alkali metals and are coherent with previous works showing that the use of more or less strong reducing agents gives very different compounds [3,10,11]. A hypothesis that can be proposed to explain this evolution is that the bigger the alkali metal, the more separated the graphene layers and consequently the more stabilized the two-dimensional metal phases.…”

“…This type of reaction usually leads to products containing several phases. Vol'pin et al [2,3] tried for the first time in 1970 to reduce graphite intercalation compounds with transition metal chlorides using various reducing agents. In the case of molybdenum chloride compounds, they obtained a transition metal GIC characterized by an interplanar distance of 370 pm.…”

Metals intercalated in graphite. IV. Intercalation from CCl4 solution and extraction of intercalated species

“…For example, fluorine, under appropriate experimental conditions, will react with graphitic carbon to give a compound of formula (C,F),. In this case, there is a covalent bond formed between graphite and fluorine, the combination is irreversible, and the fluorinated graphite shows no fluorine vapor pressure until the decomposition temperature is reached (2). In other instances, with certain transition metal salts there may be a true coordination bonding between the intercalated salt and the n-electron system of graphite, as shown recently by Volpin (3).…”

Magnetic properties of cobalt‐carbon nanocomposites

“…In order to avoid oxidation nanoparticles are synthesized to be embedded in special matrixes or to be encapsulated into special shells [1][2][3]. The alternative method is the intercalation of transition metal into graphite matrix [4,5]. The compounds of such type, known as metal-graphite intercalated compounds (MGs), are the attractive materials due to quasi 2D layered structure and potentially possess peculiar functional properties [6,7].…”

“…MGs may be a source of new issues in solid state physics and are also very important for future industrial application in spintronics. methods of MGs' production: the synthesis by the reduction of corresponding acceptor-type metal-chloride GIC's [4][5][6][20][21][22] by hydrogen, by alkali metal vapor, by chemical reductants or by electrochemical methods. The structure, phase compositions and.…”