1. State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
2. Center for Advancing Electronics Dresden (Cfaed) and Faculty of Chemistry and Food Chemistry Technische Universita¨t Dresden 01062 Dresden Germany
3. Department of Chemistry City University of Hong Kong Hong Kong Hong Kong SAR 999077 P. R. China
4. Department of Applied Physics The Hong Kong Polytechnic University Hong Kong 999077 P. R. China
5. Qingyuan Innovation Laboratory Quanzhou Fujian 362801 P. R. China
6. Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou Zhejiang 324000 P. R. China