Sustainable carbon fibres from lignin

Studenteropgave: Kandidatspeciale og HD afgangsprojekt

  • Alan Davis
  • Juhan Luik
4. semester, Materialeteknologi, Kandidat (Kandidatuddannelse)
The goal of this thesis was to create environmentally friendly carbon fibres with lignin as the precursor via the electrospinning method. They were activated to investigate them as a potential carbon capture material. Four of the tested solutions were able to produce uniform and unbeaded fibres, which were stabilised and carbonised without being fused together. The fibres were characterised and analysed with scanning electron microscopy, x-ray diffraction, Raman spectroscopy and their CO2 adsorption was investigated in a thermogravimetric analyzer. The effects of the solution concentrations on the characteristics of the fibres were investigated, and carbon fibres with a diameter as low as 310 nm were produced. The Raman data showed similar results for all samples. The activated fibres were able to capture 28 mg/g of CO2, which shows that this sustainable material has a potential in this application.
Udgivelsesdato15 jun. 2021
Antal sider64
ID: 414783940