1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
2. Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education; College of Chemistry & Materials Science; Northwest University; Xi'an 710127 China
3. Institute of Coal Chemistry; Chinese Academy of Sciences; Taiyuan 030001 China
4. Synfuels China; Beijing 100195 China
5. School of Chemical Sciences; The University of Auckland; Auckland 1142 New Zealand
6. University of Chinese Academy of Sciences; Beijing 100049 P. R. China