1. SynCat@BeijingSynfuels China Technology Co. Ltd. Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Huairou District Beijing 101407 China
2. Interdisciplinary Nanoscience Centre (iNANO)Aarhus University Gustav Wieds Vej 14 8000 Aarhus C Denmark
3. SynCat@DIFFERSyngaschem BV 6336 HH Eindhoven The Netherlands
4. State Key Laboratory of Coal ConversionInstitute of Coal Chemistry, CAS Taiyuan 030001 China
5. Center of Materials Physics & ChemistryDepartment of PhysicsBeihang University Beijing 100191 P. R. China
6. Department of Physics and AstronomyWest Virginia University Morgantown WV 26506-6315 USA