High performance hierarchical porous carbon derived from distinctive plant tissue for supercapacitor.

ABSTRACT: It is generally acknowledged that the activation method and component of the precursor are of great importance for making porous carbon. In this study, four plant materials belong to one genus were selected as optimized plant material to produce hierarchical porous carbon for supercapacitors, the influence of initial structure was discussed. All the produced porous carbons have large specific surface area (higher than 2342 m² g^-1), high microporosity (more than 57%), and high pore volume (larger than 1.32 cm³ g^-1). All the samples show characteristic of electrical double layer capacitance, and the onion-based porous carbon obtain highest specific capacitance of 568 F g^-1 at the current density of 0.1 A g^-1. With the current

SUBMITTER: Li J 

PROVIDER: S-EPMC6872525 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature