1. Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
2. Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Fusionopolis Way, Innovis, #08-03, Singapore 138634, Republic of Singapore
3. Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Republic of Singapore