@article{Shi2011, 
author = {Lei Shi and Leimei Sheng and Liming Yu and Kang An and Yoshinori Ando and Xinluo Zhao},
title = {Ultra-Thin Double-Walled Carbon Nanotubes: A Novel Nanocontainer for Preparing Atomic Wires},
year = {2011},
journal = {Nano Research},
volume = {4},
number = {8},
pages = {759-766},
keywords = {Arc discharge, carbon chains, double-walled carbon nanotubes, field electron emission, nanocontainer, nanowires},
url = {https://www.sciopen.com/article/10.1007/s12274-011-0132-y},
doi = {10.1007/s12274-011-0132-y},
abstract = {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 more than half of the DWCNTs have inner diameters in the range 0.6–1.0 nm. Field electron emission from a DWCNT cathode to an anode has been measured, and the emission current density of DWCNTs reached 1 A/cm2 at an applied field of about 4.3 V/μm. After high-temperature treatment of DWCNTs, long linear carbon chains (C-chains) can be grown inside the ultra-thin DWCNTs to form a novel C-chain@DWCNT nanostructure, showing that these ultra-thin DWCNTs are an appropriate nanocontainer for preparing truly one-dimensional nanostructures with one-atom-diameter.}
}