1. Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis No. 08-03, Singapore 138634
2. Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
3. Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576