Isothermic adsorption of heavy inert gas atoms on graphite surfaces at low pressures

Following a recently suggested electron gas density method for intermolecular potentials between inert gas atoms and solid surfaces, potentials have been calculated for inert gas atoms interacting with carbon atoms of the surface of graphite. Isothermic adsorption coefficients were then calculated as virial coefficients using atom–atom addition potentials. The results obtained were compared with experimental findings for isothermic adsorption finding good agreement for both values and temperature dependencies. q1999 Published by Elsevier Science B.V. All rights reserved