1. University of Science and Technology (UST), KIMM Campus Korea Institute of Machinery & Materials (KIMM), , 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103 , South Korea
2. Korea Institute of Energy Technology (KENTECH) , Institute of Hydrogen Energy, 200 Hyeoksin-ro, Naju-si, Jeollanam-do 58330 , South Korea
3. Korea Electric Power Corporation Research Institute , 105 Munji-ro, Yuseong-gu, Daejeon 34056 , South Korea