1. School of Mechanical Engineering Kookmin University Seoul 02707 Republic of Korea
2. Fuel Cell Laboratory Korea Institute of Energy Research (KIER) Daejeon 34129 Republic of Korea
3. Hydrogen and Fuel Cell Research Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
4. Department of Mechanical Engineering Incheon National University Incheon 22012 Republic of Korea
5. Fuel Cell Core Parts Development Cell Hyundai Mobis Co. Ltd. Uiwang 16082 Republic of Korea
6. KHU‐KIST Department of Converging Science and Technology Kyung Hee University 26, Kyungheedae‐ro, Dongdaemun‐gu Seoul 02447 Republic of Korea
7. Division of Energy & Environment Technology KIST School University of Science and Technology (UST) Daejeon 34113 Republic of Korea