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MM: Fachverband Metall- und Materialphysik
MM 30: Poster Session II
MM 30.19: Poster
Dienstag, 17. März 2020, 18:15–20:00, P4
Effect of Interfaces in the Oxide Transport Process in Platinum Coated Porous Frameworks of Yttria-Stabilized Zirconia (YSZ) — •Michele Bastianello1, Jan-Ove Söngen1, and Matthias T. Elm1,2,3 — 1Center for Materials Research, Justus-Liebig-University Gießen, Germany, Heinrich-Buff-Ring 16, 35392 Gießen — 2Institute of Experimental Physics I, Justus-Liebig-University Gießen, Germany, Heinrich-Buff-Ring 16, 35392 Gießen — 3Institute of Physical Chemistry, Justus-Liebig-University Gießen, Germany, Heinrich-Buff-Ring 17
Oxygen permeation membranes are of high interest for the production of pure oxygen. Such membranes need to transport not only oxygen ions but also the electronic charge carriers making mixed conducting oxide ceramics necessary. Research focusses mostly on multi-phase oxidic mixture or on high amounts of noble metals in oxide ceramics to achieve high mixed ionic and electronic conductivity. As an alternative approach, we hereby present the preparation of nano-structured composite materials using pulsed laser deposition (PLD) combined with atomic layer deposition (ALD). In particular, using PLD porous YSZ thin films were prepared and their surface was coated homogeneously with about 36 nm of Platinum using ALD. The transport properties of the composites were investigated using electrochemical impedance spectroscopy. To elucidate the influence of the interfaces, a series of multilayered YSZ-Pt-YSZ samples were prepared using PLD in order to obtain a fully controlled model system for comparison.