| 1993 - present : Professor, Department of Chemistry, Kyungpook National University |
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| 2006 - 2013 : | Director, BK21 Center for Advanced Chemical Materials, KNU |
| 2005 - 2006 : | Director, Center for Teaching and Learning, KNU |
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| 2013 - 2014 : | Visiting Scholar, University of California at Berkeley |
| 2001 - 2002 : | Visiting Scholar, Texas A&M University |
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| 1992 - 1993 : | Postdoctoral Research Fellow, University of Toronto and
Exxon Research and Engineering Co. |
| 1982 - 1985 : | Research Fellow, Ssangyong Oil Refining Co. |
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| 1992 : Ph. D., Department of Chemistry, University of California at Berkeley
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1988 : MS, Department of Chemistry, Kansas State University
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1983 : BS, Department of Chemistry, Seoul National University
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