title: Tailored distribution of single-wall carbon nanotubes from arc plasma synthesis using magnetic fields.
abstract: We report a method for tuning the distribution of single-wall carbon nanotubes (SWCNTs) produced by the anodic arc production method via the application of nonuniform magnetic fields to the gap region during synthesis. Raman, ultraviolet-visible-near-infrared absorbance and near-infrared fluorescence spectroscopies were used to characterize samples together with scanning electron microscopy. Application of the nonuniform magnetic field 0.2-2 kG results in a broadening of the diameter range of SWCNTs produced toward decreased diameters, with substantial fractions of produced SWCNTs being of small diameter, less than ∼1.3 nm, at the highest field. The ability to tune production of the arc production method may allow for improvement in achievable SWCNT properties.
authors: George Washington University, Department of Mechanical and Aerospace Engineering, Washington, D.C. 20052, USA.
authors: Olga
authors: O
authors: Volotskova
authors: Jeffrey A
authors: JA
authors: Fagan
authors: Ji Yeon
authors: JY
authors: Huh
authors: Frederick R
authors: FR
authors: Phelan
authors: Alexey
authors: A
authors: Shashurin
authors: Michael
authors: M
authors: Keidar