1. Division of Advanced
Materials, Korea Research Institute of Chemical Technology, 141
Gajeong-Ro, Yuseong-Gu, Daejeon 305-600, Korea
2. Department of Chemical Engineering,
College of Engineering, Kyung Hee University, 1 Seochon-dong, Giheung-gu, Youngin-si, Gyeonggi-do 446-701, Republic
of Korea
3. Department of Energy
Science, Sungkyunkwan University, Suwon
440-746, Korea