1. Institute for Chemical Physics & Department of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China
2. NanoCarbon Research Institute,
AREC, Shinshu University, Ueda, Nagano
386-8567, Japan
3. Fukui Institute
for Fundamental
Chemistry, Kyoto University, Kyoto 606-8103,
Japan