1. Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
2. Analytical Center of Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
3. Research Center for Artificial Photosynthesis (ReCAP), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan