1. Helmholtz Institute Erlangen‐Nürnberg for Renewable Energy (IEK‐11) Forschungszentrum Jülich GmbH Egerlandstr. 3 Erlangen 91058 Germany
2. Department of Chemical and Biological Engineering Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 3 Erlangen 91058 Germany