1. Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin, Hahn-Meitner Platz 1, 14109 Berlin, Germany
2. ISIS, Harwell Science and Innovation Campus, STFC, Oxon OX11 0QH, United Kingdom
3. Institute for Solar Fuels, Helmholtz-Zentrum Berlin, Hahn-Meitner Platz 1, 14109 Berlin, Germany
4. Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany