1. Department of Power Engineering School of Energy Power and Mechanical Engineering North China Electric Power University 071003 Baoding P. R. China
2. Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology North China Electric Power University 071003 Baoding P. R. China
3. CNOOC Institute of Chemicals and Advanced Materials Beijing 102200 P. R. China
4. School of Chemical and Biomolecule Engineering The University of Sydney 2006 Darlington NSW Australia
5. Advanced Institute for Materials Research (WPI-AIMR) Tohoku University 980-8577 Sendai Japan