1. Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, China
2. State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Polytechnic University, Jiaozuo, China
3. Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou, China