Thermodynamic characterization of a dichloromethane-xenon film adsorbed on (0001) graphite

被引:6
作者
Rakotozafy, S
DupontPavlovsky, N
Croset, B
Duval, X
机构
[1] LAB CHIM SOLIDE MINERAL,CNRS,URA 158,F-54506 VANDOEUVRE NANCY,FRANCE
[2] LAB M LETORT,F-54600 VILLERS LES NANCY,FRANCE
[3] UNIV PARIS 07,PHYS SOLIDES GRP,CNRS,URA 17,F-75251 PARIS 05,FRANCE
[4] UNIV NANCY 1,NANCY,FRANCE
关键词
adsorption isotherms; graphite; physical adsorption;
D O I
10.1016/0039-6028(95)01072-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Xenon adsorption between 95 and 115 K on graphite pre-plated with a dichloromethane monolayer results in a partial displacement of the pre-adsorbed layer and in the formation of a two-dimensional (dichloromethane-xenon) solution. When the dichloromethane pre-plating is in the sub-monolayer range, a xenon monolayer is condensed on the bare part of the surface before the composite layer organization. For dichloromethane coverages greater than a monolayer, kinetic problems arise for the formation of xenon bilayer patches, which implies in this case its separation from the two-dimensional solution.
引用
收藏
页码:206 / 214
页数:9
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