From nanopores to macropores: Fractal morphology of graphite

详细信息    查看全文

• 作者：Zhou Zhou^a ; ^{Z.Zhou-1@tudelft.nl" class="auth_mail" title="E-mail the corresponding author} ; Wim G. Bouwman^a ; Henk Schut^a ; Sylvain Desert^b ; Jacques Jestin^b ; Stefan Hartmann^c ; Catherine Pappas^a
• 刊名：Carbon
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：96
• 期：Complete
• 页码：541-547
• 全文大小：1643 K

文摘

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 ∼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.