Affiliation: | a School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Ave., Singapore 639798, Singapore b School of Chemical and Biomolecular Engineering, Nanyang Technological University, 50 Nanyang Ave., Singapore 637819, Singapore c Inorganic Chemistry Laboratory, University of Oxford, Parks Road, Oxford OX1 3QR, UK d DSO National Laboratories, 20 Science Park Drive, Singapore 118230, Singapore |