One-step synthesis of biomass-derived porous carbon foam for high performance supercapacitors

We report a facile, cost-effective and one-step carbonization and activation of cattail biomass to prepare porous carbon foam. Due to its high specific surface area (1951 m(2) g(-1)) and cross-linked foam structure, carbon foam material demonstrates is a promising electrode material for supercapacitor with high specific capacitance of 336 F g(-1), good rate performance and cycle stability. (C) 2013 Elsevier B.V. All rights reserved.