1. College of Chemistry and Molecular Engineering
2. Zhengzhou University
3. Zhengzhou 450001
4. P R China
5. Department of Chemistry
6. Tsinghua University
7. Beijing 100084
8. Department of Materials Science & Metallurgy
9. Nokia R&D UK
10. Cambridge
11. UK
12. Shanghai Key Laboratory of Modern Metallurgy and Materials Processing
13. Shanghai University
14. Shanghai 200072
15. University of Cambridge
16. Cambridge CB3 0FS