Nearly Space-Filling Fractal Networks of Carbon Nanopores

P. Pfeifer, F. Ehrburger-Dolle, T. P. Rieker, M. T. González, W. P. Hoffman, M. Molina-Sabio, F. Rodríguez-Reinoso, P. W. Schmidt, and D. J. Voss
Phys. Rev. Lett. 88, 115502 – Published 28 February 2002
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Abstract

Small-angle x-ray scattering, nitrogen adsorption, and scanning tunneling microscopy show that a series of activated carbons host an extended fractal network of channels with dimension Dp=2.83.0 (pore fractal), channel width 1520 (lower end of scaling), network diameter 30003400 (upper end of scaling), and porosity of 0.3–0.6. We interpret the network as a stack of quasiplanar invasion percolation clusters, formed by oxidative removal of walls between closed voids of diameter of 10 and held in registry by fibrils of the biological precursor, and point out unique applications.

  • Received 11 January 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.115502

©2002 American Physical Society

Authors & Affiliations

P. Pfeifer1,2, F. Ehrburger-Dolle3,*, T. P. Rieker4,†, M. T. González5, W. P. Hoffman6, M. Molina-Sabio5, F. Rodríguez-Reinoso5, P. W. Schmidt1,‡, and D. J. Voss1

  • 1Department of Physics, University of Missouri, Columbia, Missouri 65211
  • 2Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • 3Institut de Chimie des Surfaces et Interfaces, CNRS, F-68057 Mulhouse, France
  • 4Center for Microengineered Materials, University of New Mexico, Albuquerque, New Mexico 87131
  • 5Departamento de Química Inorgánica, Universidad de Alicante, E-03080 Alicante, Spain
  • 6Air Force Research Laboratory, Edwards Air Force Base, California 93524

  • *Present address: Laboratoire de Spectrométrie Physique, CNRS, Université Joseph Fourier, BP 87, F-38402 Saint-Martin d'Hères Cedex, France.
  • Present address: Corporate Research, Corning Inc., SP-FR-03, Corning, NY 14831.
  • Deceased.

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Vol. 88, Iss. 11 — 18 March 2002

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