STRUCTURAL AND ADSORPTION PROPERTIES OF CARBONS SYNTHESIZED WITHIN TAENIOLITE MATRICES

Nanocomposites and carbons obtained from carbonization of Indoine Blue cations at different temperatures (from 673 to 1473 K) within inorgan ic taeniolite matrices have been studied by a series of physicochemica l methods including transmission electron microscopy (TEM), FTIR and s orption measurements. Carbonaceous materials separated from the minera l host have varying microtexture which is related to the degree of car bonization and subsequent orientation of the so-called basic structura l units (BSUs). Low pyrolysis temperatures (673 K) lead to the creatio n of an amorphous carbon with well pronounced features characteristic of the organic precursor. Higher pyrolysis temperatures (1073 K) resul t in significant constrained chemistry and, consequently, structure of the materials. The microtexture of the carbons obtained is governed b y the effects of temperature and properties of the matrix and conseque ntly the orientation of BSUs within the interlayer space. They influen ce the graphitizability of these carbons: disoriented BSUs result in t urbostratic carbon; BSUs with parallel orientation result in polycryst alline graphite.