Single-step synthesis and magnetic separation of graphene and carbon nanotubes in arc discharge plasmas

O. Volotskova; I. Levchenko; A. Shashurin; Y. Raitses; K. Ostrikov; M. Keidar

doi:10.1039/C0NR00416B

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Nanoscale

Issue 10, 2010

A new peer reviewed journal publishing experimental and theoretical work across the breadth of nanoscience and nanotechnology

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Single-step synthesis and magnetic separation of graphene and carbon nanotubes in arc discharge plasmas

O. Volotskova,^a I. Levchenko,^b^c A. Shashurin,^a Y. Raitses,^d K. Ostrikov*^b^c and M. Keidar*^a

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Corresponding authors

Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, USA
E-mail: keidar@gwu.edu

Plasma Nanoscience Centre Australia (PNCA), CSIRO Materials Science and Engineering, P.O. Box 218, Lindfield, Australia
E-mail: Kostya.Ostrikov@csiro.au

Plasma Nanoscience, School of Physics, The University of Sydney, Sydney, Australia

Princeton Plasma Physics Laboratory, Princeton, USA

Nanoscale, 2010,2, 2281-2285

DOI: 10.1039/C0NR00416B
Received 18 Jun 2010, Accepted 20 Jul 2010
First published online 16 Aug 2010

This article is part of themed collection: Physics Nobel 2010 Web Collection: Graphene

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Abstract
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The unique properties of graphene and carbon nanotubes made them the most promising nanomaterials attracting enormous attention, due to the prospects for applications in various nanodevices, from nanoelectronics to sensors and energy conversion devices. Here we report on a novel deterministic, single-step approach to simultaneous production and magnetic separation of graphene flakes and carbon nanotubes in an arc discharge by splitting the high-temperature growth and low-temperature separation zones using a non-uniform magnetic field and tailor-designed catalyst alloy, and depositing nanotubes and graphene in different areas. Our results are very relevant to the development of commercially-viable, single-step production of bulk amounts of high-quality graphene.

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Supplementary Info

Details of the setup and process; details on the micro-Raman, TEM, SEM, AFM, and characterization of the carbon deposits in different collection areas; detailed description of the results obtained by micro-Raman, AFM and electron diffraction techniques
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O. Volotskova
I. Levchenko
A. Shashurin
Y. Raitses
K. Ostrikov
M. Keidar

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