"N-doped CNF with Co and Co-oxide for efficient alkaline ORR catalysis (Korea-Italy Symposium on Hydrogen and Fuel Cells)"
2015.4.21., Seoul, Korea
"R&D Activities on PEMFC at KIST (IEA-AFC Annex 22 Workshop)"
2014.6.13.-14, Pfinztal, Germany
"Development of Non-Precious Metal Catalyst for ORR (IEA-AFC Annex 22 Workshop)"
2013.12.11-12, Tokyo, Japan
"Development of Highly-Active ORR Catalysts for PEMFC at KIST (IEA-AFC Annex 22 Workshop)"
2012.6.12.-22, Daejeon, Korea
"Degradation of MEA for Automotive PEMFCs (Workshop on Fuel Cell Systems)"
2011.10.5., Seoul, Korea
"A Study on Performance Degradation of PEMFC by Water Freezing (Workshop on Fuel Cell Operation at Sub-Freezing Temperature)"
2005.2.1-2, Phoenix, Arizona, U.S