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Published March 1992 | public
Journal Article

Adsorption Hysteresis, Capillary Condensation, and Melting in Multilayer Methane Films on Graphite Foam

Abstract

We have studied adsorption hysteresis in the system multilayer methane adsorbed on graphite foam by measuring heat capacities on each branch of the hysteresis curve. We are able to show that, on the stable branch, capillary condensation begins, surprisingly, at 1.1 layers. These observations call into question previous conclusions about this and other multilayer adsorbed systems.

Additional Information

© 1992 American Chemical Society. Received September 12, 1991. In Final Form: November 15, 1991. We thank the Union Carbide Corp. for supplying us with the Grafoam sample. We are grateful to Professor M. W. H. Chan, Professor J. M. Phillips, Professor J. G. Dash, Dr. J. Larese, and Dr. M. Bienfait for many helpful discussions. This work was supported by Department of Energy (DOE) Contract No. DE-FG03-85ER45192.

Additional details

Created:
August 20, 2023
Modified:
October 25, 2023