- 2024.9. – present
Professor, Dept. of Materials Sci. & Eng., KAIST
- 2014.9. – 2024.8.
Associate Professor, Dept. of Materials Sci. & Eng., KAIST
- 2012.4. – present
AFC IA Annex-22 & 26 Representative, International Energy Agency (IEA)
- 2012.3. – 2014.8.
Principal Research Scientist, Fuel Cell Research Center, KIST
- 2012.3. – 2013.8.
Adjunct Professor, Korea UniversityㆍKIST Green School
- 2009.3. – 2010.2.
Guest Professor, Dept. of Chemical and Biological Eng., Korea University
- 2006.11. – 2007.10.
Visiting Scholar, National Fuel Cell Research Center, UC Irvine, USA
- 2006.3. – 2010.2.
Adjunct Professor, University of Science and Technology
- 2004.9. – 2008.2.
Guest Professor, Dept. of Chemical and Biological Eng., Korea University
- 2004.3. – 2012.2.
Senior Research Scientist, Fuel Cell Research Center, KIST
- 2002.3. – 2004.2.
Research Scientist, Fuel Cell Research Center, KIST
- 2001.1. – 2001.2.
Visiting Scholar, National Research Institute for Metals, Japan
- 2000.1. – 2000.5.
Visiting Scholar, The Pennsylvania State University, USA
