Lin, Jian
Peng, Zhiwei
Liu, Yuanyue
Ruiz-Zepeda, Francisco
Ye, Ruquan
Samuel, Errol L. G.
Yacaman, Miguel Jose
Yakobson, Boris I.
Tour, James M.
Article History
Received: 6 June 2014
Accepted: 29 October 2014
First Online: 10 December 2014
Competing interests
: The authors declare no competing financial interests.