Hydrophilic Hierarchical Nitrogen-Doped Carbon Nanocages for Ultrahigh Supercapacitive Performance.

Zhao, Jin; Lai, Hongwei; Lyu, Zhiyang; Jiang, Yufei; Xie, Ke; Wang, Xizhang; Wu, Qiang; Yang, Lijun et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

The synergism of large surface area, multiscale porous structure, and good conductivity endows hierarchical carbon nanocages with high-level supercapacitive performances. Further nitrogen doping greatly improves the hydrophilicity, which boosts the supercapacitive performances to an ultrahigh specific capacitance of up to 313 F g(-1) at 1 A g(-1).