1. Co-Innovation Center for Energetic Materials (CICEM), Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China
2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
3. State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China