Non-graphitic carbons

Most non-graphitic carbons are prepared by pyrolysis of organic polymer or hydrocarbon precursors at temperatures below -1500 °C. Further heat treatment of most non-graphitic carbons at temperatures from -1500 to -3000 °C makes it possible to distinguish between two different types of carbons. 

In comparison with graphite, non-graphitic carbons can provide additional sites for lithium accommodation. As a result, they show a higher capability of reversible lithium storage than graphites, i.e., stoichiometries of x> in Li C6 are possible. 

The end-of-charge potential of non-graphitic carbons, either hydrogen-containing carbons (Fig. 12) or cokes... 

Non-graphitic carbon materials that can be obtained from synthetic polymers by pyrolysis are of particular interest. The capacities of carbonaceous materials are summarized in Table 8.11. 

Wongkoblap A and Do DD. Characterization of Cabot non-graphitized carbon blacks with a defective surface model Adsorption of argon and nitrogen. Carbon, 2007 45(7) 1527-1534. 

Keywords non-graphitic carbon electrochemical treatment mass-spectroscopy... 

Figure 10. Examples of partially graphitizable carbonaceous materials (asphaltenes), ranging from Pmax 0 (non-graphitizing carbon ) with 3QQ2min. 3.44 A, to P x (highly graphi-tizing carbon) with HQQ2min. 3.36 A. qqo is plotted as a function of heat treatment temperature (25,3/).

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