1. Graduate
School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5
Takayama-cho, Ikoma, Nara 630-0192, Japan
2. Deparment
of Chemical Technology, Hanoi University of Science, VNU, 19 Le Thanh Tong, Hoan
Kiem, Hanoi, Vietnam
3. Research Institute of Innovative Technology for the Earth (RITE), 9-2 Kizugawadai,
Kizugawa, Kyoto 619-0292, Japan