1. Catalysts Strategic Division, Engineered Materials Sector, Mitsui Mining & Smelting Co., Ltd., 1013-1 Ageoshimo, Ageo, Saitama 362-0025, Japan
2. Department
of Applied Chemistry and Biochemistry, Graduate School of Science
and Technology, Kumamoto University 2-39-1 Kurokami, Chuo, Kumamoto 860-8555, Japan
3. Unit of Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Kyoto Daigaku Katsura, Saikyo, Kyoto 615-8520, Japan