Activation and structural and adsorption features of activated carbons with highly developed micro-, meso- and macroporosity

V. M. Gun'Ko, V. V. Turov, O. P. Kozynchenko, V. G. Nikolaev, S. R. Tennison, S. T. Meikle, E. A. Snezhkova, A. S. Sidorenko, F. Ehrburger-Dolle, I. Morfin, D. O. Klymchuk, S. V. Mikhalovsky

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Three sets of activated carbons (ACs) were prepared with the same precursor but activated differently (by CO2 or water vapour) with various burn-off levels. The ACs demonstrate increased deviation of the pore shape from the slitshaped model with increasing burn-off and contributions of pores of different sizes depending on the activation type. Significant re-arrangement of adsorption complexes, especially of the Van der Waals type characteristic for nonpolar or weakly polar adsorbates (H2, CH4, CH 2Cl2, CHCl3), occurs in both micropores and mesopores of ACs with decreasing temperature. The behaviour of their mixtures with water and DMSO can strongly differ from that of individual adsorbates.

Original languageEnglish
Pages (from-to)453-460
Number of pages8
JournalAdsorption
Volume17
Issue number3
DOIs
Publication statusPublished - Jun 1 2011

Keywords

  • Activated carbons
  • CO activation
  • HO activation
  • Interfacial behaviour
  • Particle morphology
  • Structural characteristics

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Surfaces and Interfaces

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