1. Physical School of Science and Technology, Inner Mongolia University, Hohhot 010021, China
2. Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, Puerto Rico 00931, USA
3. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
4. Center for Aircraft Fire and Emergency, Civil Aviation University of China, Tianjin 300300, China