1. Energy Research Institute @ NTU (ERI@N) SCARCE Laboratory Nanyang Technological University Singapore 637459 Singapore
2. School of Materials Science and Engineering Nanyang Technological University (NTU) 50 Nanyang Avenue Singapore 639798 Singapore
3. Université de Montpellier CEA CNRS ENSCM; UMR 5257 (ICSM) BP 17171 Bagnols‐sur‐Cèze Cedex 30207 France