1. Center for Hydrogen and Fuel Cell Research Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
2. Materials Architecturing Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
3. School of Materials Science and Engineering Gyeongsang National University Jinju 52828 Republic of Korea
4. Department of Mechanical Engineering Inha University Incheon 22212 Republic of Korea
5. Department of Chemical Engineering Inha University Incheon 22212 Republic of Korea
6. Graduate School of Energy and Environment (KU‐KIST Green School) Korea University Seoul 02841 Republic of Korea