1. Forschungszentrum
Jülich GmbH, Institute of Energy and Climate
Research, Materials Synthesis and Processing (IEK-1), 52425 Jülich, ‡Jülich Aachen
Research Alliance, JARA-Energy, and §Helmholtz-Institute Münster, c/o Forschungszentrum Jülich GmbH, 52425 Jülich, Germany