1. Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
2. Department of Materials ETH Zürich Wolfgang-Pauli-Strasse 27 CH-8093 Zurich Switzerland
3. Department of Chemical Engineering Münster University of Applied Science Stegerwaldstraße 39 D-48565 Steinfurt Germany