1. State Key Laboratory of Organic and Inorganic Composites, Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
2. Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
3. Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Science; Beijing 100049 People's Republic of China