MEAN FIELD-THEORY AND MONTE-CARLO SIMULATION OF MULTISITE ADSORPTION

被引：33

作者：

VANDEREERDEN, JP

STAIKOV, G

KASHCHIEV, D

LORENZ, WJ

BUDEVSKI, E

机构：

[1] BULGARIAN ACAD SCI,CENT LAB ELECTROCHEM POWER SOURCES,BU-1000 SOFIA,BULGARIA

[2] BULGARIAN ACAD SCI,INST PHYS CHEM,BU-1000 SOFIA,BULGARIA

[3] UNIV KARLSRUHE,INST PHYS CHEM & ELEKTROCHEM,D-7500 KARLSRUHE,FED REP GER

来源：

SURFACE SCIENCE | 1979年 / 82卷 / 02期

关键词：

D O I：

10.1016/0039-6028(79)90196-1

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：

Multisite or 1 n adsorption on single crystal surfaces takes place when the adatom diameter is greater than the distance between two neighbouring adsorption sites. The adsorption isotherm has been deduced using a mean field approximation. The same problem was studied by Monte Carlo simulation. The results show asymmetric adsorption isotherms with respect to a degree of coverage of 0.5. The critical temperature of a first order phase transition is increased as compared with the case of 1 1 adsorption. The theoretical and the simulated isotherms are in a good agreement for low adatom-adatom attraction. The theoretical and simulated isotherms obtained were used for interpretation of experimental results on electrolytic underpotential adsorption of Tl and Pb on Ag(100) faces. © 1979.

引用

页码：364 / 382

页数：19

共 31 条

[1] COMPUTER SIMULATION OF VAPOR DEPOSITION ON 2-DIMENSIONAL LATTICES [J].