1. Department of Chemistry, City College, 102/1, Raja Rammohan Sarani, Kolkata – 700 009, India
2. Graduate School of Engineering, Department of Chemical Engineering Kyoto University-Katsura Nishikyo-ku, Kyoto-Shi, Kyoto-fu, 615-8510, Japan
3. Department of Materials Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan