1. Innovation Research Center for Fuel CellsThe University of Electro-Communications Chofu, Tokyo 182-8585 Japan
2. Japan Synchrotron Radiation Research Institute Koto, Sayo, Hyogo 679-5198 Japan
3. 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
4. RIKEN SPring-8 Center Koto, Sayo Hyogo 679-5198 Japan
5. Department of Materials Molecular ScienceInstitute for Molecular Science Myodaiji-cho, Okazaki, Aichi 444-8585 Japan