1. Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Singapore 138634, Singapore
2. Institution of Sustainability for Chemical, Energy and Environment (ISCE2), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
3. School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore