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

作者：Gun'ko V M; Turov V V; Kozynchenko O P; Nikolaev V G; Tennison S R; Meikle S T; Snezhkova E A; Sidorenko A S; Ehrburger Dolle F; Morfin I; Klymchuk D O; Mikhalovsky S V^*

来源：Adsorption, 2011, 17(3): 453-460.

DOI：10.1007/s10450-010-9282-6

• Activated carbons
• CO(2) activation
• H(2)O activation
• Structural characteristics
• Particle morphology
• Interfacial behaviour

Three sets of activated carbons (ACs) were prepared with the same precursor but activated differently (by CO(2) 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 (H(2), CH(4), CH(2)Cl(2), CHCl(3)), 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.

• 出版日期2011-6