Abstract
In this paper we discuss the first attempts to induce the effect of Electrochemical Promotion or Non-Faradaic Electrochemical Modification of Catalytic Activity (NEMCA) on highly dispersed catalyst-electrodes systems which can compete in terms of dispersion and surface area with industrial catalysts. Three systems are discussed: 1. Electrochemical promotion of C2H4 oxidation on electronically isolated Pt catalysts on Y2O3-stabilized-Zirconia (YSZ) where NEMCA is induced via potential application between two terminal Au electrodes also supported on the solid electrolyte (bipolar design). 2. Electrochemical promotion of C2H4 oxidation on a finely dispersed Pt catalyst deposited on a Au electrode which is supported on YSZ. 3. Induction of NEMCA during CH3OH oxidation on Pt without external voltage application by utilizing the potential difference developed between the catalyst and a catalytically inert counter electrode.
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