One-step preparation of nitrogen-doped graphene nanosheets for high-performance supercapacitors
By Gao, Biaofeng; Zhou, Haitao; Yang, Jianhong
Published in Applied Surface Science
NULL
2017
Abstract
Abstract Graphene nanosheets (GNs) have been successfully synthesized by one-step carbonization and simultaneous chemical activation of polyaniline (PANI) nanofibers, with large surface area (1759.5 m2 g?1), high pore volume (1.16 cm3 g?1) and a mesopore rich structure (volume in micropore/total ratio, 2.16%). The vital (NDs) become entrapped within a carbon lattice (to form GNs). {GNs} could be used as an outstanding electrode material for supercapacitors in {EMIMBF4} with high cycling stability (more than 73% retention of the initial capacitance after 10,000 cycles). The symmetric supercapacitor has an excellent energy density of 170.2 Wh kg?1 (25
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