1. Department of Chemistry University of Cincinnati Cincinnati OH 45221 USA
2. State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 China
3. National Energy Center for Coal to Liquids Synfuels CHINA Co., Ltd Beijing 101400 China
4. Syncat@Beijing Synfuels CHINA Co., Ltd Beijing 101407 China
5. School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China