1. Toyota Motor Corporation, Advanced Material Engineering Division, Higashifuji Technical Center, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
2. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
3. Laboratory of Advanced Science and Technology for Industry, University of Hyogo, Koto, Hyogo 678-1205, Japan
4. Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
5. Synchrotron Radiation Research Organization, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
6. Institute for Advanced Synchrotron Light Source, National Institutes for Quantum Science and Technology (QST), Sendai, Miyagi 980-8579, Japan
7. Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya 456-8587, Japan
8. Department of Chemistry, School of Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan
9. Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan