Electrochemical promotion of Pd, Fe and distributed Pt catalyst-electrodes

This paper describes recent results of the use of the effect of non-faradaic electrochemical modification of catalytic activity (NEMCA) or Electrochemical Promotion (EP) in the following systems, which are of potential practical interest: (i) C2H4 oxidation on electronically isolated Pt catalysts on YSZ, where NEMCA is induced via potential application between two terminal Au electrodes also supported on the solid electrolyte (wireless configuration), (ii) NH, decomposition on Fe catalyst electrodes interfaced with CaZr0.9In0.1O3-alpha, a proton conducting solid electrolyte support using a single pellet configuration and (iii) Selective C2H2 hydrogenation on Pd catalyst electrodes interfaced with beta-Al2O3, a Na+ conductor, using a multi-pellet configuration. In all cases the metal counter electrodes are also exposed to the reaction mixture. (C) 2000 Elsevier Science B.V. All rights reserved.