Electrosorption of Br and Cl on Ag(100): Experiments and Computer Simulations

Details Electrosorption of Br and Cl on Ag(100): Experiments and Computer Simulations Electrosorption of Br and Cl on Ag(100): Experiments and Computer Simulations

2002-11-08

arxiv.org/abs/cond-mat/0211169v2

Journal of Electroanalytical Chemistry 554-555 (2003) 211-219

Physics

Condensed Matter

Materials Science

Scientific paper

10.1016/S0022-0728(03)00178-5

We present chronocoulometry experiments and equilibrium Monte Carlo simulations for the electrosorption of Br and Cl on Ag(100) single-crystal electrode surfaces. Two different methods are used to calculate the long-range part of the adsorbate-adsorbate interactions. The first method is a truncated-sum approach, while the second is a mean-field-enhanced truncated-sum approach. To compare the two methods, the resulting isotherms are fit to experimental adsorption isotherms, assuming both a constant electrosorption valency &gamma and also a coverage-dependent &gamma. While a constant &gamma fits the Br/Ag(100) well, a coverage-dependent or potential-dependent &gamma is needed for Cl/Ag(100).

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