Status of Biomass Derived Carbon Materials for Supercapacitor Application

Figure 3

SEM morphologies of porous carbon derived from water hyacinth through different routes.

(a) SEM micrography for water hyacinth derived carbon [48]

(b) SEM images of water hyacinth derived carbon activated using ZnCl₂ [47]

(c) SEM images for water hyacinth activated with KOH [49]