Ion spillover as the origin of NEMCA effectIon spillover as the origin of NEMCA effect Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-301993enThe catalytic activity and selectivity of metal films deposited on solid electrolytes can be altered dramatically and reversibly via the effect of Non-Faradaic Electrochemical Modification of Catalytic Activity (NEMCA). In the present paper we briefly summarize the main features of the NEMCA effect and present and discuss the existing kinetic, electrokinetic and surface spectroscopic evidence that NEMCA is due to an electrochemically induced and controlled ion spillover from/to the solid electrolyte to/from the metal catalyst surface.http://creativecommons.org/licenses/by/4.0/Studies in Surface Science and Catalysis77111-116 Vayenas, Costas G Bebelis, Symeon Gentekakis Ioannis Γεντεκακης Ιωαννης Neophytides, S. G Jiang Yi Elsevier Catalysis