1. Department of Chemistry, Graduate School of Science & Research Center for Materials Science & Integrated Research Consortium on Chemical ScienceNagoya University Furo, Chikusa, Nagoya Aichi 464-8602 Japan
2. RIKEN SPring-8 Center Koto Sayo Hyogo 679-5198 Japan
3. Innovation Research Center for Fuel CellsThe University of Electro-Communications Chofu Tokyo 182-8585 Japan
4. Japan Synchrotron Radiation Research CenterSPring-8 Koto, Sayo Hyogo 679-5198 Japan