[1] School of Chemical and Biological Engineering, Research Center for Energy Conversion and Storage, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul, 151-744, Korea, Republic of
[2] Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ont. M5S 3E5, Canada
[3] School of Chemical Engineering and Bioengineering, University of Ulsan, Ulsan, 680-749, Korea, Republic of
[4] School of Environmental and Chemical Engineering, Chonbuk National University, Jeonju, Chonbuk, 561-756, Korea, Republic of