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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 3, Number 2
BKCSDE 3(2)
February 20, 1982

Title	Stepwise Adsorption in Gas-Solid Adsorption System and Phase Transition in Adsorbed Phase
Author	Song Hee Lee, Jo Woong Lee, Hyungsuk Pak, Seihun Chang
Keywords
Abstract	In this work we have studied the multilayer stepwise adsorption of gases on solid adsorbents based on the previously developed tbeory. It is shown that stepwise adsorption isotherms emerge from our theory if an ad hoc adsorption regarding the degree of occupation for each successive layer is abolished and the effect of lateral intermolecular interactions among adsorbate molecules is included. In addition to these the effect of vertical interactions has also been taken into consideration. It seems that the vertical interaction plays a role in deciding the shape and the position of steps in resulting isotherms. It is evident from this research that it is the lateral interaction that is responsible for stepwise adsorption as long as the adsorbent surface is uniform and temperature is sufficiently low.
Page	37 - 44
Full Text	PDF

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