1. Center for Energy & Environmental Science
2. Shinshu University
3. Nagano 380-8553
4. Japan
5. Department of Chemical System Engineering
6. School of Engineering
7. The University of Tokyo
8. Tokyo 113-8656
9. National Synchrotron Radiation Laboratory
10. Collaborative Innovation Center of Chemistry for Energy Materials
11. University of Science & Technology of China
12. Hefei 230029
13. China
14. Institute of Engineering Innovation
15. Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem)
16. Mitsui Chemicals, Inc.
17. Chiba 299-0265