Regensburg 2010 – scientific programme
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O: Fachverband Oberflächenphysik
O 90: Invited talk (Behm, Jürgen)
O 90.1: Invited Talk
Friday, March 26, 2010, 14:15–15:00, H36
Surface Science and Electrocatalysis - Where do we stand? — •R. Jürgen Behm — Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm
The close connection between Surface Science and Heterogeneous Catalysis, both on the experimental and on the theory side, is well established, and bridging the materials and pressure gap initially separating these disciplines has become a highly active field [1]. The existence of similar relations between the fields of Surface Science/Heterogeneous Catalysis and Electrochemistry/Electrocatalysis was much less established, although electrochemical studies on single crystals (’Surface Electrochemistry’) have been reported since several decades [2]. Driven also by the recent rise of Electrochemical Energy Technologies (fuel cells, photovoltaics, batteries etc.) in concepts for future sustainable energy supplies, this has changed considerably during recent years [3].
In the present talk I want to illustrate the close correlations between these fields and the validity of similar microscopic concepts for the description of reactions at the solid/gas and the solid/liquid interface, but also point out key differences, using simple reactions such as O2 reduction or C1 oxidation as examples. The potential of combined experimental and theoretical studies is demonstrated.
[1] R. Imbihl, R.J. Behm, R. Schlögl, Phys. Chem. Chem. Phys. 9 (2007) 3459.
[2] D.M. Kolb, Surf. Sci. 500 (2002) 722.
[3] Fuel Cell Catalysis: A Surface Science Approach, M.T.M. Koper, ed. (Wiley and Sons, Chichester, 2009).