Surfactant free fractions of metallic and semiconducting single-walled carbon nanotubes via optimised gel chromatography
作者： Pawel Lukaszczuk , Mark H. Rümmeli , Martin Knupfer , Ryszard J. Kalenczuk , Ewa Borowiak-Palen
DOI: 10.1016/J.MATERRESBULL.2011.12.021
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摘要: Abstract We report the procedure of sorting/purification carbon nanotubes by electronic type using chromatographic column with sodium dodecylsulfate (SDS) and deoxycholate (DOC) solutions as eluents. The non-commercial agarose gel in different concentrations has been tested process. It was found that optimal concentration fractionation resulted ∼96.2% yield semiconducting species. Importantly, to get surfactant-free fractions post-separation purification carried out. UV–vis–NIR Raman spectroscopy have utilised for samples analysis. High resolution transmission microscopy thermogravimetric analysis allowed study sample morphology purity, respectively.
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