This work was supported by the National Natural Science Foundation of China (Grant No. 10974131), the Nanotechnology Program of Shanghai Science and Technology Committee (No. 0952nm07100), the Scienceand Technology Innovation Fund of the Shanghai Education Committee (No. 09ZZ85) and Shanghai Pujiang Talent Plan (No. 08PJ1405100). We thank Professor Shoushan Fan of Tsinghua-Foxconn Nanotechnology Research Center for the HRTEM measurements, and Professor Pingheng Tan of the Institute of Semiconductors for some of the Raman measurements.
Double-walled carbon nanotubes (DWCNTs) with high graphitization have been synthesized by hydrogen arc discharge. The obtained DWCNTs have a narrow distribution of diameters of both the inner and outer tubes, and mo...