1. Graduate School Department of Energy Storage/Conversion Engineering (BK21 FOUR) Hydrogen and Fuel Cell Research Center Jeonbuk National University Jeonju Jeollabuk‐do 54896 Republic of Korea
2. Department of Mechanical Engineering University of Nevada, Reno Reno NV 89557 USA
3. Department of Life Science Jeonbuk National University Jeonju Jeollabuk‐do 54896 Republic of Korea