GRAND-CANONICAL MONTE-CARLO SIMULATION FOR NITROGEN ADSORPTION IN GRAPHITIC SLIT MICROPORES - EFFECT OF INTERLAYER DISTANCE

Adsorption isotherms of N-2 by slit-shaped graphitic micropores at 77 K were simulated using grand canonical Monte Carlo (GCMC) simulation a nd compared the simulated isotherms with experimental adsorption isoth erms of N-2 on pitch-based activated carbon fibers. The pore was model ed as the slit space between parallel smooth graphite surfaces. The co ncept of the effective pore width which can be determined experimental ly was used for the simulation. The effect of the layer distance (d(00 2)) of the graphitic structure on the simulated N-2 adsorption isother m was examined. The observed d(002) of activated carbon fiber (ACF) we ll simulated the experimental result. Copyright (C) 1996 Elsevier Scie nce Ltd