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Nonionic Electrophoretic Sorting of SWCNTs into Metallic and Semiconducting Tubes

Published online by Cambridge University Press:  10 April 2013

Kiley A. Johns ,
Katie J. Koontz ,
Danhao Ma ,
Kathryn J. Carruba  and
Kofi W. Adu
Kiley A. Johns
Affiliation:
Department of Architectural Engineering, The Pennsylvania State University, University Park, PA 16802, U.S.A.
Katie J. Koontz
Affiliation:
Department of Civil Engineering, The Pennsylvania State University, University Park, PA 16802, U.S.A.
Danhao Ma
Affiliation:
Department of Energy Engineering, The Pennsylvania State University, University Park, PA 16802, U.S.A.
Kathryn J. Carruba
Affiliation:
Department of Physics, The Pennsylvania State University, Altoona College, Altoona, PA 16601, U.S.A.
Kofi W. Adu
Affiliation:
Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, U.S.A. Department of Physics, The Pennsylvania State University, Altoona College, Altoona, PA 16601, U.S.A.
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Abstract

We present our preliminary results on a novel technique to electrophoretically sort singlewall carbon nanotubes into metallic and semiconducting tubes using a free-solution nonionic surfactant in a homemade electrophoretic vertical cell. The technique is used to sort purified commercial product SWCNTs, (Thomas Swan Elicarb) into metallic and semiconducting tubes. In contrast to onventional electrophoresis techniques, which takes more than 24 hours to obtain efficient separation, our approach takes ∼ 6 hours to achieve efficient separation, which reduces the separation time by four fold. Characterization of the sorted tubes with micro-Raman spectroscopy analysis shows very strong enrichment of both metallic and semiconducting tubes.

Keywords

nanostructurecompositeabsorption
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1505: Symposium W – Carbon Nanomaterials , 2013 , mrsf12-1505-w03-67
Copyright
Copyright © Materials Research Society 2013

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