1. Guangxi Institute Fullerene Technology (GIFT), Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Resources, Environment and Materials, Guangxi University, Nanning 530000, China
2. Department of Chemistry, Warsaw University, Warsaw 00-927, Poland
3. College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530000, China
4. College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4PY, U.K.
5. Advanced Materials Group, Faculty of Engineering, The University of Nottingham, Nottingham NG27 2RD, U.K.