1. Institute of New Carbon Materials
2. Taiyuan University of Technology
3. Taiyuan 030024
4. China
5. School of Materials Science and Engineering
6. Nanyang Technological University
7. Singapore
8. Department of Chemistry
9. University of Washington
10. Seattle
11. USA
12. Institute of Crystalline Materials
13. Shanxi University
14. Taiyuan
15. National University of Singapore