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arXiv · 1509.05673

From Nanopores to Macropores: Fractal Morphology of Graphite

Zhou Zhou·Wim G. Bouwman·Henk Schut·Sylvain Desert·Jacques Jestin·Stefan Hartmann·Catherine Pappas
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Abstract

We present a comprehensive structural characterization of two different highly pure nuclear graphites that compasses all relevant length scales from nanometers to sub-mm. This has been achieved by combining several experiments and neutron techniques: Small Angle Neutron Scattering (SANS), high-resolution Spin Echo SANS (SESANS) and neutron imaging. In this way it is possible to probe an extraordinary broad range of 6 orders of magnitude in length from microscopic to macroscopic length scales. The results reveal a fractal structure that extends from $ \sim $ 0.6 nm to 0.6 mm and has surface and mass fractal dimensions both very close to 2.5, a value found for percolating clusters and fractured ranked surfaces in 3D.

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Zhou Zhou, Wim G. Bouwman, Henk Schut, Sylvain Desert, Jacques Jestin, Stefan Hartmann, Catherine Pappas. 2015-09-18. From Nanopores to Macropores: Fractal Morphology of Graphite. https://doi.org/10.1016/j.carbon.2015.09.069

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