Fabrication of robust, highly conductive, and elastic hybrid carbon foam platform for high-performance compressible asymmetry supercapacitors

Nanofibrillated cellulose with the features of nano-scale fibers and self-assembly has attracted significant attention to acquire porous structure for low-cost and high-performance electrode materials. Here, a carbon nanofiber aerogel was prepared by self-assembling the building-blocks of nanofibrillated cellulose into controlled macro and mesoporous structure. A typical activation was further applied to engineer abundant micropores, which led to narrowed carbon walls as well as improved surface area (1726 m2 g-1).Due to the facile-constructed hierarchical pore structure and large ion-accessible surface area, the resultant carbon aerogel exhibited comparable performance to reported electrodes from porous bio-carbons.