1. Department of Materials Science & Engineering, Incheon National University, Incheon 22012, South Korea
2. School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
3. Office of Technology Development & Service, Korea Polar Research Institute, Incheon 21990, South Korea
4. Energy Plant R&D Group, Korea Institute of Industrial Technology, Busan 31056, South Korea