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Theoretical study on adsorbate induced surface stress of iodide monolayer on Au(111) electrode

RONG XIE1,*

Affiliation

  1. School of Materials Science and Chemical Engineering, Anhui Institute of Architecture and Industry, Hefei 230022, PR China

Abstract

The statistical thermod ynamic theory of adsorbate induced surface stress of anion adsorption monolayer on Au(111) has been established by using the lattice gas model and considering various components of the adsorbate adsorbate interaction energies in the adlayer. The adsorbate induced surface stress and its components due to various intermolecule forces of iodide adions on the Au(111) electrode surface have been calculated. The calculated surface stress of iodide adions on Au(111) approximates the experiment results. Among vario us components of the adsorbate adsorbate interaction energies in the adlayer, the substrate mediated interaction is significant for the adsorbate induced surface stress, which shows that indirect contribution of the adsorption energy of iodide adions thro ugh the substrate mediated interaction is very important..

Keywords

Anion adsorption, Surface stress, Lattice gas model.

Citation

RONG XIE, Theoretical study on adsorbate induced surface stress of iodide monolayer on Au(111) electrode, Optoelectronics and Advanced Materials - Rapid Communications, 7, 7-8, July-August 2013, pp.553-559 (2013).

Submitted at: June 27, 2012

Accepted at: July 11, 2013