1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education
2. School of Energy and Power Engineering
3. Chongqing University
4. Chongqing 400044
5. China
6. State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
7. Ningxia University
8. Yinchuan 750021
9. School of Chemistry and Chemical Engineering
10. Queen's University Belfast
11. Belfast BT7 1NN
12. UK