Dresden 2011 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 102: Epitaxy and growth: Metals and semiconductors II

O 102.7: Vortrag

Freitag, 18. März 2011, 12:45–13:00, WIL C307

Comparing Zn on Pd(110) with Zn on Pd(111) with LEED, LEIS and TDS — •Werner Stadlmayr, Christoph Rameshan, Simon Penner, Bernhard Klötzer, and Norbert Memmel — Physikalische Chemie, Universität Innsbruck, Austria

Methanol-steam-reforming (MSR) is an important catalytic reaction with regards to hydrogen usage and storage. PdZn-systems were found to show promising properties regarding MSR-capability. In several recent works, Zn on the densely-packed Pd(111)-surface was studied as possible model system and compared with catalytic studies on a polycrystalline Pd-foil. In the present work we present thermodesorption (TDS), low-energy electron diffraction (LEED) and angle-resolved low-energy ion scattering (LEIS) data for the growth and alloying of Zn on the more open Pd(110)-surface. We compare these results with Zn on Pd(111) and discuss differences and similarities.