On fractal nature of the structure of nanoporous carbon obtained from carbides

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Abstract
The curves describing small-angle x-ray scattering at npor-C nanoporous carbon samples obtained from polycrystalline α-SiC, TiC, and Mo2C and a 6H-SiC single crystal have been analyzed. An algorithm is developed for taking into account the corrections to experimental curves for the intensity of the primary beam transmitted through the sample and the height of the inlet slit in these measurements. Two systems of nanoclusters observed in the npor-C structure differ in the type of stacking of structural elements: small-scale mass fractals of a dimension 1<D 2550 Å. In most samples, large-scale nanoclusters can be regarded as objects with a fractal surface and a dimension 2<D 12. Peculiarities of the structure formation of nanoporous carbon obtained from various carbides are discussed.

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