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Rapid Acid-Mediated Purification of Single-Walled Carbon Nanotubes with Homogenization of Bulk Properties

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A rapid, mild and readily scaleable method for purification and isolation of single-walled nanotubes (SWNTs) using aqueous nitric acid that, in only 1–2 hours at reflux temperature, not only decrease the content of residual metal particles but also the relative ratio of small diameter and metallic NTs. The acid-treated SWNTs have been characterised by TEM, FT-IR, and Raman spectroscopy (514 and 783 cm−1). The results are discussed in relation to observations from other acid-mediated treatments and the reactive chemical species involved at different conditions.
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Keywords: AQUEOUS NITRIC ACID; PURIFICATION; SINGE-WALLED CARBON NANOTUBE

Document Type: Research Article

Publication date: 01 April 2007

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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