1 Self-enhancing H2 evolution from TiO2 nanostructures under illumination Ewa Wierzbicka, 1,3 Xuemei Zhou, 1 Nikita Denisov, 1 JeongEun Yoo, 1 Dominik Fehn, 2 Ning Liu, 1 Karsten Meyer 2 and Patrik Schmuki* 1,4,5 1. Department of Materials Science, WW4-LKO, University of Erlangen- Nuremberg, Martensstrasse 7, 91058 , Erlangen, Germany 2. Department of Chemistry and Pharmacy, Inorganic & General Chemistry, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany 3. Department of Chemical and Materials Engineering, Complutense University of Madrid, Madrid, Spain. 4. Department of Chemistry, King Abdulaziz University, Jeddah, Saudi Arabia. 5. Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Slechtitelu 11, 783 71 Olomouc, Czech Republic *E-mail: schmuki@ww.uni-erlangen.de. Phone: +49 91318517575. Fax: +49 91318527582. Link to the published article: https://onlinelibrary.wiley.com/doi/full/10.1002/cssc.201900192