Download Electrochemical activation of catalysis: promotion, by Costas G. Vayenas, Symeon Bebelis, Costas Pliangos, Susanne PDF

By Costas G. Vayenas, Symeon Bebelis, Costas Pliangos, Susanne Brosda, Demetrios Tsiplakides

I knew not anything of the paintings of C. G. Vayenas on NEMCA until eventually the early nineties. Then I realized from a paper of his thought (gas interface reactions will be catalyzed electrochemically), which appeared rather impressive; yet i didn't know how it labored. as a result, i made a decision to correspond with Professor Vayenas in Patras, Greece, to arrive a greater figuring out of this idea. i believe that my early papers (1946, 1947, and 1957), at the courting among the paintings functionality of steel surfaces and electron move reactions thereat to debris in answer, held me in stable stead to be receptive to what Vayenas informed me. because the electrode power adjustments, so in fact, does the paintings functionality on the interface, and fuel steel reactions there contain adsorbed debris that have bonding to the outside. no matter if electron move is whole in any such case, or no matter if the impression is at the desorption of radicals, the paintings functionality determines the energy in their bonding, and if one varies the paintings functionality through various the electrode strength, you can actually range the response expense on the interface. I received the assumption. After that, it's been gentle crusing. Dr. Vayenas wrote a seminal article in smooth facets of Electrochemistry, quantity 29, and taken the sphere into the general public eye. It has due to the fact grown and its usefulness in chemical catalytic reactions has been verified and validated world wide.

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Extra info for Electrochemical activation of catalysis: promotion, electrochemical promotion, and metal-support interactions

Example text

8. This image has been obtained on a Pt(111)-(2×2)-O adlattice surface partly covered by the ordered Pt(111)-(12×l2)-Na adlayer under transient conditions of electrochemical Na removal from the Pt surface. Three different surface domains are clearly visible, one corresponding to the Pt(l 1 l)-(12×12)-Na adlayer, another to the cleaned Pt(111)-(2×2)-O surface and a third region corresponding to a higher coverage Pt(111) overlayer. 2. 6 which has not attracted attention in the past. This feature is depicted in Fig.

2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. M. Faraday, Experimental Researches in Electricity. § 11. On Electrochemical Decomposition, Philosophical Transactions of the Royal Society, 77-122 (1834). M. G. Vayenas, The effect of Electrochemical Oxygen Pumping on the Rate and Selectivity of Ethylene Oxidation on Polycrystalline Silver, J. Catal. 70, 137146(1981). M. G. Vayenas, The effect of electrochemical oxygen pumping on the Rate and Selectivity of Propylene Oxidation on Silver in a Solid Electrolyte Cell, J.

Bandur, F. J. Bjerrum, Electrochemical Promotion of Sulfur Dioxide Catalytic Oxidation, J. Electrochem. Soc. 147(8), 30103013(2000). K. -H. -A. Y. Lee, Electrochemical Oxidation of Methanol over a Silver Electrode Deposited on Yttria-Stabilized Zirconia Electrolyte, J. Catal. 163, 95-105 (1996). A. H. S. Metcalfe, The effect of electrochemical current pumping on the work function of solid electrolyte supported catalysts, Surf. Sci. 405, 308-315(1998). J. Janek, M. Rohnke, B. Luerssen, and R. Imbihl, Promotion of catalytic reactions by electrochemical polarization, Phys.

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