1. Coal tar pitch-based porous carbon by one dimensional nano-sized MgO template
- Author
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Zhang, Wenfeng, Huang, Zheng-Hong, Cao, Gaoping, Kang, Feiyu, and Yang, Yusheng
- Subjects
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COAL tar , *POROUS materials , *CARBON , *NANOPARTICLES , *CHEMICAL templates , *MAGNESIUM oxide , *NITROGEN absorption & adsorption , *SUPERCAPACITORS - Abstract
Abstract: Porous carbons are derived by carbonizing coal tar pitch with one dimension non-silica template (needle-like nano-sized MgO). The samples are characterized by nitrogen adsorption at 77K and XRD analysis. The electrochemical performances for supercapacitor are evaluated in a 6M KOH aqueous solution. The results show that the as-prepared porous carbons possess abundant mesopores of 3.7–6.5nm. With air stabilization process, the samples possess more micropores, contributing nearly 50% of surface areas. The porous carbon with large template content through air stabilization possess a high surface area of 864m2 g−1. For supercapacitors electrode material, the porous carbon shows a high capacity and excellent power performance, retaining 100Fg−1 even at a current density of 30Ag−1. [Copyright &y& Elsevier]
- Published
- 2012
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