1. Z. Zhao, L.-M. Wang, X.-F. Zhou, J. He, Z. Liu, H.-T. Wang, Y. Tian, ACS Nano Lett. 266(5), 7226–7234 (2011)
2. The indexes “n” in the (n, 0) and (n, n) nanotubes refer to the number “n” of translational unit vectors of the corresponding graphene sheet adopted in the corresponding “zigzag” and “armchair” nanotube types, respectively
3. Z. Wang, Y. Zhao, K. Tait, X. Liao, D. Schiferl, C. Zha, R.T. Downs, J. Qian, Y. Zhu, T. Shen, Proc. Natl. Acad. Sci. (PNAS) 101(38), 13699–13702 (2004)
4. H.R. Karfunkel, T. Dressler, J. Am. Chem. Soc. 114(7), 2285–2288 (1992)
5. M.J. Bucknum, Chem. Prepr. Arch. 2001(1), 75–110 (2001)