Topics in Catalysis

, Volume 44, Issue 3, pp 347–354 | Cite as

On the work function changes and other properties of the gas-exposed electrode surface in the NEMCA effect

Article

A simple model is developed to describe the backspillover of ionic species at the solid/gas interface as observed in non-Faradaic electrochemical modification of catalytic activity (NEMCA) systems. This model predicts a linear relationship between work function changes and changes in the potential difference at the metal/solid electrolyte interface, as observed experimentally. It also predicts a linear dependence of the surface coverage by ionic species on the potential difference at the metal/solid electrolyte interface, and a linear dependence of the binding energy of adsorbed species on the work function of the gas-exposed catalyst surface.

Keywords

NEMCA effect modelling effective double layer work function 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.INFIQC, Unidad de Matemática y Física, Facultad de Ciencias QuímicasUniversidad Nacional de CórdobaCórdobaArgentina

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