1. Macro–microporous carbon for supercapacitors derived from rape seed shell.
- Author
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Zhang, Tao, Zheng, Mingbo, Li, Nianwu, Lu, Hongling, Zhang, Songtao, and Cao, Jieming
- Subjects
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MICROPORES , *CARBON , *SUPERCAPACITORS , *RAPESEED , *HONEYCOMB structures , *SURFACE area - Abstract
Abstract: In this work, a novel macro–microporous architecture is successfully constructed in a honeycomb-like structure by directly using rape seed shell via impregation-activation route. This approach permits the high specific surface area (SSA) and a unique hierarchical porous structure which consists of interconnected macroporous skeleton and a significant microporosity. The unique honeycomb-like network combined with high specific surface area is favorable for charging the electric double-layer. The resulting carbon is highly suitable as electrodes of electric double layer capacitors, with remarkable values of capacitance of up to 225Fg−1 at a current density of 1Ag−1 in 2M KOH electrolyte. Therefore, the as-prepared carbon can be a potential candidate for supercapacitors. [Copyright &y& Elsevier]
- Published
- 2013
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