1. School
of Mechanical Engineering, Korea University, Seoul 136-713, Republic of Korea
2. School of Energy Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea
3. Petrochemicals Research Chair, Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia
4. Surface Technology Division, Korea Institute of Materials Science, Changwon 641-010, Republic of Korea
5. Photovoltaic
Laboratory, Korea Institute of Energy Research, 71-2 Jangdong,
YuseongGu, DaeJeon 305-543, Republic of Korea
6. Department of Chemistry and NIS, University of Torino, Via P. Giuria 7, 10125 Torino, Italy
7. Interuniversity Consortium
of Chemical Reactivity and Catalyis, University of Bari, 70126 Bari, Italy