1. Department of Chemical Sciences, University of Padova, via Marzolo 1, Padua 35131, Italy
2. Advanced Light Source (ALS) Joint Center
for Artificial Photosynthesis (JCAP), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., M/S 6R2100 Berkeley, California 94720, United States
3. Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park-Basovizza, Strada Statale 14, Km.163.5, I-34149 Trieste, Italy
4. Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14, Km.163.5, I-34149 Trieste, Italy
5. School of Chemistry, University of Bristol, Cantocks Close, Bristol BS8 1TS, United Kingdom
6. Industrial Engineering Department and INSTM, University of Padova, Padova 35131, Italy