1. Faculty of Applied Chemical Engineering, Chonnam National University, Gwang-ju 500-757, Republic of Korea
2. R&D Education Centre for Fuel Cell Materials & Systems, Chonbuk National University, Jeonju 561-756, Republic of Korea
3. Energy Research
Institute @ NTU
(ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang
Drive, Singapore 637553
4. Power Control Device Research Team, Electronics and Telecommunications Research Institute, Daejeon 305-700, Korea