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2011 | 13 | 3 | 1-4
Tytuł artykułu

Single-walled carbon nanotubes fractionation via electrophoresis

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This work presents the influence of the sonication time on the efficiency of the metallic/semiconducting (M/S) fractionation of diazonium salt functionalized single-walled carbon nanotubes (SWCNTs) via free solution electrophoresis (FSE) method. The SWCNTs synthesized via laser ablation were purified from amorphous carbon and catalyst particles through high vacuum annealing and subsequent refluxing processes in aqua regia solutions, respectively. The purified material was divided into two batches. The SWCNTs samples were dispersed in 1% SDS solution in ultrasound bath for 2 and 12 hours. Both dispersed SWCNTs samples were functionalized with p-aminobenzoic acid diazonium salt and fractionated via free solution electrophoresis method. Afterwards, the fractionated samples were recovered, purified from surfactant/functionalities by annealing and investigated via UV-Vis-NIR optical absorption spectroscopy (OAS). The efficiency of the fractionation process was estimated through the comparison of the van Hove singularities (vHS) presented in the obtained fractions to the starting SWCNTs.
Słowa kluczowe
Wydawca
Rocznik
Tom
13
Numer
3
Strony
1-4
Opis fizyczny
Daty
wydano
2011-01-01
online
2011-10-05
Twórcy
  • Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
  • Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
  • Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
  • Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
  • Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
Bibliografia
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  • Miyata, Y., Yanagi, K., Maniwa, Y. & Kataura, H. (2008). Optical evaluation of the metal-to-semiconductor ratio of single wall carbon nanotubes J. Phys. Chem.112, 13187-13191. DOI: 10.1021/jp072359g.[Crossref]
  • Miyauchi, Y. & Maruyama, H. (2006). Identification of an excitonic phonon sideband by photoluminescence spectroscopy of single-walled carbon-13 nanotubes. Phys. Rev. B 74(3), 035415-035422. DOI: 10.1103/PhysRevB.74.035415.[Crossref]
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_v10026-011-0028-3
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