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Sökning: WFRF:(Perkson A)

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1.
  • Leis, J, et al. (författare)
  • Carbon nanostructures produced by chlorinating aluminium carbide
  • 2001
  • Ingår i: Carbon. - 0008-6223 .- 1873-3891. ; 39:13, s. 2043-2048
  • Tidskriftsartikel (refereegranskat)abstract
    • A number of carbon samples with different nanostructures such as: amorphous, nanoparticles and turbostratic, were synthesised through the reaction between aluminium carbide and gaseous chlorine at fixed temperatures between 300 and 900 degreesC. The synthesised carbon samples were characterised using high-resolution transmission electron microscopy and X-ray powder diffraction techniques, as well as low temperature nitrogen sorption measurements. The carbon produced at T=300 degreesC was amorphous with a surface area of similar to 1400 m(2) g(-1). At 700 degreesC, a large amount of carbon nanoparticles and with a lower surface area similar to 710 m(2) g(-1) was obtained. At 900 degreesC, mainly a turbostratic carbon with a surface area of similar to 680 m(2) g(-1) was produced.
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2.
  • Leis, J, et al. (författare)
  • Catalytic effects of metals of the iron subgroup on the chlorination of titanium carbide to form nanostructural carbon
  • 2002
  • Ingår i: Carbon. - 0008-6223 .- 1873-3891. ; 40:9, s. 1559-1564
  • Tidskriftsartikel (refereegranskat)abstract
    • The effect of the reaction temperature and the metals of an iron subgroup on the thermo-chemical treatment of titanium carbide with a chlorine gas and their influence on the carbon structure obtained thereby was studied. Different analytical methods such as porosity measure me tits, X-ray diffraction spectrometry and a high-resolution electron microscopy revealed the catalytic behaviour of the above-mentioned metals. which appeared to support the formation of graphitised carbon at much lower temperatures compared to those needed for the ordinary thermo-chemical chlorination of titanium carbide.
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Svensson, Gunnar, 19 ... (2)
Leis, J (2)
Perkson, A (2)
Arulepp, M (2)
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