Affiliation: | 1. Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565‐0871 (Japan), Fax: (+81)?6‐6879‐7390;2. Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan) |