1. Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan, Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, Corporate R&D Center, Showa Denko K. K., 1-1-1 Ohnodai, Midori-ku, Chiba, Chiba 267-0056, Japan, Showa Titanium Co., Ltd, 3-1 Nishinomiya-machi, Toyama, Toyama 931-8577, Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1...