Huimin Liu1, Yicheng Wang1, Silan Zhao1,2, Hongyun Hu1, Chengyang Cao1, Aijun Li1, Yun Yu1, and Hong Yao1,*
1 State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
2 School of Chemistry and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China