초록 |
Single-walled carbon nanotubes (SWNTs) were incorporated into the interior of pine cones via inherent water absorption behavior of the cone. Individually dispersed aqueous-phase SWNTs were impregnated into the cone along the pathway of water absorption. Interestingly, it was found that SWNTs were concentrated in the scales of the cone. To explore the potential of the SWNT/cone composites as a carbon precursor, the cone was further treated with potassium hydroxide (KOH) solution. The KOH treatment altered the qualitative properties of the cone, which was used to generate activated carbons, and led to swelling of the cell wall of the cone to ultimately increase the size of the pores formed via carbonization. It is believed that our approach provides more options for ameliorating the properties of biomass-derived carbons. |