1. School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
2. Energy Research Institute (ERI@N); Interdisciplinary Graduate School; Nanyang Technological University; 50 Nanyang Drive Singapore 639798 Singapore
3. Institute of Materials Research and Engineering; A*STAR (Agency for Science; Technology and Research); 2 Fusionopolis WayInnovis #08-03 Singapore 138634 Singapore
4. School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
5. Division of Chemical and Biomolecular Engineering; School of Chemical and Biomedical Engineering; Nanyang Technological University; 70 Nanyang Drive Singapore 637457 Singapore