On the purification of CVD grown boron doped single-walled carbon nanotubes

Autor(en)

Rosa Georgina Ruiz Soria, Paola Ayala, Stephan Puchegger, Hiromichi Kataura, Kazuhiro Yanagi, Thomas Pichler

Abstrakt

In this paper, we report a facile purification method of boron-doped single-walled carbon nanotubes (SWCNTs) produced by high vacuum chemical vapor deposition (HV-CVD). The raw material was doped in situ during growth, with a B content below 0.5 at.%, estimated by means of X-ray photoelectron spectroscopy (XPS). Using ultracentrifugation combined with a mild acid solution pH neutralization, we have proved it is feasible to purify this material, which originally contains synthesis byproducts that differ from the typical catalytic remaining in pristine carbon nanotube samples produced with a similar method. The diameter size and distribution previous and after purification have been monitored by multi-frequency Raman spectroscopy.

Organisation(en)

Elektronische Materialeigenschaften, Dynamik Kondensierter Systeme

Externe Organisation(en)

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

Journal

Physica Status Solidi. B: Basic Research

Band

248

Seiten

2504-2507

Anzahl der Seiten

4

ISSN

0370-1972

DOI

https://doi.org/10.1002/pssb.201100139

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik, 2020 Elektrotechnik, Elektronik, Informationstechnik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/on-the-purification-of-cvd-grown-boron-doped-singlewalled-carbon-nanotubes(78e38b6f-8785-4a6a-967b-287bae798ec6).html