Templated direct growth of ultra-thin double-walled carbon nanotubes
- Author(s)
- Lei Shi, Jinquan Wei, Kazuhiro Yanagi, Takeshi Saito, Kecheng Cao, Ute Kaiser, Paola Ayala, Thomas Pichler
- Abstract
Double-walled carbon nanotubes (DWCNTs) combined the advantages of multi-walled (MW-) and single-walled (SW-) CNTs can be obtained by transforming the precursors (e.g. fullerene, ferrocene) into thin inner CNTs inside SWCNTs as templates. However, this method is limited since the DWCNT yield is strongly influenced by the filling efficiency (depending on the type of the filled molecules), opening and cutting the SWCNTs, and the diameter of the host SWCNTs. Therefore, it cannot be applied to all types of SWCNT templates. Here we show a universal route to synthesize ultra-thin DWCNTs via making SWCNTs stable at high temperature in vacuum. This method applies to different types of SWCNTs including metallicity-sorted ones without using any precursors since the carbon sources were from the reconstructed SWCNTs and the residue carbons. The resulting DWCNTs are with high quality and the yield of inner tubes is comparable to/higher than that of the DWCNTs made from the transformation of ferrocene/fullerene peapods.
- Organisation(s)
- Electronic Properties of Materials
- External organisation(s)
- Tsinghua University, Tokyo Metropolitan University, National Institute of Advanced Industrial Science and Technology (AIST), Universität Ulm
- Journal
- Nanoscale
- Volume
- 10
- Pages
- 21254-21261
- No. of pages
- 8
- ISSN
- 2040-3364
- DOI
- https://doi.org/10.1039/C8NR06925E
- Publication date
- 11-2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103008 Experimental physics
- Keywords
- ASJC Scopus subject areas
- General Materials Science
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/cdde0c90-9406-4d00-99bc-07194670fb1c