Templated direct growth of ultra-thin double-walled carbon nanotubes

Autor(en)

Lei Shi, Jinquan Wei, Kazuhiro Yanagi, Takeshi Saito, Kecheng Cao, Ute Kaiser, Paola Ayala, Thomas Pichler

Abstrakt

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(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Tsinghua University, Tokyo Metropolitan University, National Institute of Advanced Industrial Science and Technology (AIST), Universität Ulm

Journal

Nanoscale

Band

10

Seiten

21254-21261

Anzahl der Seiten

8

ISSN

2040-3364

DOI

https://doi.org/10.1039/C8NR06925E

Publikationsdatum

11-2018

Peer-reviewed

Ja

ÖFOS 2012

103008 Experimentalphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/cdde0c90-9406-4d00-99bc-07194670fb1c