Die u:cris Detailansicht:

Carbon nanotubes from enhanced direct injection pyrolytic synthesis as templates for long linear carbon chain formation

Autor(en)

Lei Shi, Philip Rohringer, Paola Ayala, Takeshi Saito, Thomas Pichler

Abstrakt

Carbon nanotubes (CNTs) can be used as nanoreactors due to their unique

hollow nanostructures. In order to prepare linear carbon chains inside

CNTs, eDIPS single-wall carbon nanotubes were annealed at high

temperatures from 1300 to 1500 in vacuum conditions. A Raman mode including three components between 1820 and 1880 cm⁻¹

were observed in eDIPS carbon nanotube sample encapsulating linear

carbon chains. In addition, the intensity of the peaks corresponding to

the radial breathing mode of small diameter tubes became visible and

increased significantly after annealing, because thin inner tubes are

also formed inside the original tubes during the annealing process,

which are served as templates. This hints that the linear carbon chains

are actually synthesized inside the new inner CNTs with reduced

diameter. This study has important implications to understand the growth

and identification of linear carbon chains inside the CNTs.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

National Institute of Advanced Industrial Science and Technology (AIST)

Journal

Physica Status Solidi. B: Basic Research

Band

250

Seiten

2611-2615

Anzahl der Seiten

ISSN

0370-1972

DOI

https://doi.org/10.1002/pssb.201300148

Publikationsdatum

12-2013

Peer-reviewed

ÖFOS 2012

103020 Oberflächenphysik, 103009 Festkörperphysik, 103018 Materialphysik

Schlagwörter

Link zum Portal