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  •    Associate professor
  • Electrochemistry and Nanoscience
  • Ph.D. 2008, Pohang University of Science and Technology

Contact information

Tel: (office) +82-42-350-2822, (lab) +82-42-350-2862
Location: (office) Room 3105 (Bldg. E6-4), (lab) Room 3124 (Bldg. E6-4)
Fax: +82-42-350-2810


Ph. D., POSTECH, Chemistry (2004.3 - 2008.2)
B.S., Sookmyung Women's University, Chemistry and Physics (1997.3 - 2002.2)


2016.2 - present KAIST, Assistant professor
2011.2 - 2016.1 RIKEN, Byon Initiative Research Unit, Principal Investigator (PI)
2014.4 - 2016.1 Tokyo Institute of Technology, Adjunct associate professor
2008.10 - 2010.12 MIT, Postdoctoral associate
2008.3 - 2008.9 POSTECH, Postdoctoral associate
2002.1 - 2003.8 Nautilus Hyosung, Employee


Best Thesis Award in POSTECH (2008)
Best Thesis Award in Korean Chemical Society (2008)


Brief Introduction



Advancement in clean energy to cut pollution and global warming is one of most significant of our duties as scientists. For this target, interdisciplinary research is pivotal, where chemistry is at the core. We pursue electrochemistry to accomplish green-energy technology, thus aiming to understand electrochemical reactions to resolve scientific and engineering challenges. We will particularly focus on gaining fundamental insights regarding the role and reaction mechanism of electrocatalysts and applying this knowledge to electrochemical energy systems. We will achieve this research target with advanced nanomaterial and in-situ observation of electrochemical reactions at surfaces and interfaces.

Research topics

- Electrocatalysis
- Electrochemical energy storage
- Electrochemical energy conversion

Representative publications

1. "Romoting formation of nanocrystalline Li2O2 in Li-O2 battery with RuO2 nanoparticles", Nano Lett. 2013, 13, 4679-4684.
2. "In Situ AFM imaging of Li-O2 electrochemical reaction on HOPG with ether-based electolyte", J. Am. Chem. Soc. 2013, 135, 10870-10876.
3. " High-performance rechargable lithium-idodine batteries using triiodide/iodide redox couples in an aqueous cathode, Nat.Commun. 2013, 4, 1896.
4. "Carbon nanotube guided formation of silicon oxide nanotrenches", Nat. Nanotech. 2007, 2, 162-166.