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

• Published in: Solid state ionics Vol. 136; no. 1-2; pp. 857 - 862
• Main Authors: Balomenou, S, Pitselis, G, Polydoros, D, Giannikos, A, Vradis, A, Frenzel, A, Pliangos, C, Pütter, H, Vayenas, C.G
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 02.11.2000
• Subjects: Electrochemical promotion; NEMCA; Solid electrolyte; YSZ; Electrochemical promotion; Pt; Pd; CaZr 0.9In 0.1O 3− α; Solid electrolyte; C 2H 4; NH 3; C 2H 2; NEMCA; Fe; β″-Al 2O 3
• ISSN: 0167-2738; 1872-7689
• DOI: 10.1016/S0167-2738(00)00524-5

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) C 2H 4 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 3 decomposition on Fe catalyst electrodes interfaced with CaZr 0.9In 0.1O 3− α , a proton conducting solid electrolyte support using a single pellet configuration and (iii) Selective C 2H 2 hydrogenation on Pd catalyst electrodes interfaced with β″-Al 2O 3, a Na + conductor, using a multi-pellet configuration. In all cases the metal counter electrodes are also exposed to the reaction mixture.