1. Institutes of Physical Science and Information Technology Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education Anhui University Hefei 230601 P. R. China
2. CAS Key Laboratory of Carbon Materials Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 China
3. Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
4. Institute of Chemical and Engineering Sciences Pesek Road, Jurong Island 627833 Singapore Singapore
5. Dalian National Laboratory for Clean Energy Dalian 116023 China
6. Institute of High Performance Computing A*STAR (Agency for Science, Technology and Research) 1 Fusionopolis Way, #16-16 Connexis S138632 Singapore