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Anthracites contain over 90% carbon, most of which is in the form of large, polycyclic aromatic sheets. The high carbon content and the highly aromatic nature give anthracites great potential for conversion to high-value carbon materials. This paper reviews previous work and summarizes the present status of conversion of anthracites to four types of premium carbon materials: molded or extruded graphites,...
In this work, we will compare the ability to graphitize of two petroleum cokes, isotropic and anisotropic, and of two varieties of anthracites, in order to understand their subsequent ability to give exfoliated carbons. Both series of derived materials obtained by heat treatment (1500-2600 o C) of these four precursors are compared after the action of an excess of mixture containing water,...
Two anthracites (La Mure, France and Hongay, Vietnam) have been exfoliated after intercalation in a perchloric and nitric acid solution followed by a thermal shock treatment. The anthracites are extensively exfoliated as shown by scanning electron microscopy, and this treatment is responsible for a significant development of mesoporosity and a great increase of specific surface area. Hongay anthracite...
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