1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
2. Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
3. Synchrotron Light Research Institute (SLRI), Nakhon Ratchasima 30000, Thailand
4. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P.R. China
5. Energy Research Institute (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore