Weber, William J. and Goodstein, David L. (1999) Theory and Observation of Displacement Phenomena in Coadsorbed Films. Physical Review Letters, 83 (19). pp. 3888-3891. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:WEBprl99
See Usage Policy.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:WEBprl99
Displacement refers to a surprising phenomenon observed in a number of adsorption systems. At low temperatures, some relatively inert gases, such as krypton (Kr) or methane ( CH4), are found to displace molecules from preadsorbed monolayer films of a more condensable species, such as carbon tetrachloride ( CCl4), from a graphite substrate. We present a simple thermodynamic model to explain displacement and make a prediction applicable to both first-order and continuous displacement processes. We also present measurements on CH4/CCl4 and Kr/CCl4 coadsorbed films from 77–112 K that verify our prediction and yield the CCl4 film spreading pressure.
|Additional Information:||©1999 The American Physical Society Received 3 May 1999|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||13 Dec 2006|
|Last Modified:||18 Sep 2014 18:11|
Repository Staff Only: item control page