Cicada slough-derived heteroatom incorporated porous carbon for supercapacitor: Ultra-high gravimetric capacitance. (March 2019)

• Record Type: Journal Article
• Authors: Jia, Haiyang; Sun, Jiawei; Xie, Xiao; Yin, Kuibo; Sun, Litao
• Is Part Of: Carbon. Volume 143(2019)
• Page Start: 309
• Page End: 317
• Publication Date: 2019-03
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2018.11.011
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: Heteroatom incorporated porous carbon from cicada slough, has been synthesized through a simple activation process. The cicada slough-based porous carbon has high potency of naturally-derived heteroatom functionalities (∼12.06% atomic ratio of nitrogen, oxygen, sulfur, and phosphorus), well-developed microporosity and high specific surface area (1676 m 2 g −1 ). Supercapacitor involves the as-obtained carbon as electrode material showing ultra-high specific capacitance of 355 F g −1 at the current density of 1 A g −1 and excellent rate capability of 284 F g −1 at 30 A g −1 . The retention of specific capacitance of the working electrode remains over 90% after 3000 cycles at 10 A g −1 . Single electrode in the symmetric-two-electrode test also delivers high specific capacitance of 274 F g −1 with the energy density up to ∼9.0 W h kg −1 in aqueous electrolyte. These outstanding results suggest the biomass derived porous carbon possessing the potential for the fabrication of high performance supercapacitors. Graphical abstract: