Catalytic Graphitization of Biomass : For the Production of Graphite Materials
Sammanfattning: In recent years the material graphite has been heavily studied since its use in widespread applications have increased, for example batteries, vehicles, and solar cells. When the need for this type of material increases the efficiency and the sustainability of the production methods must be taken into consideration. This thesis presents an alternative method to produce graphite from biochar which is renewable. Biochar in combination with a catalyst was used rather than the more traditional method, which is known for its high temperatures and time-consuming procedures. The weight ratio of pure iron (catalyst) to biochar was approximately 22.4 wt-% in the graphite production process. The result was analyzed using X-Ray Diffraction and showed that the method managed to produce a high crystalline graphite at a temperature of 1300 °C within 3 hours. The result also showed that by using a catalyst a graphite sample with a high “degree of graphitization” with a moderate crystal size was produced.
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