Hydrophilic Hierarchical Nitrogen-Doped Carbon Nanocages for Ultrahigh Supercapacitive Performance

Jin Zhao; Hongwei Lai; Zhiyang Lyu; Yufei Jiang; Ke Xie; Xizhang Wang; Qiang Wu; Lijun Yang; Zhong Jin; Yanwen Ma; Jie Liu; Zheng Hu

doi:10.1002/adma.201500945

Hydrophilic Hierarchical Nitrogen-Doped Carbon Nanocages for Ultrahigh Supercapacitive Performance

Adv Mater. 2015 Jun 17;27(23):3541-5. doi: 10.1002/adma.201500945. Epub 2015 Apr 30.

Authors

Jin Zhao¹, Hongwei Lai¹, Zhiyang Lyu¹, Yufei Jiang¹, Ke Xie¹, Xizhang Wang¹, Qiang Wu¹, Lijun Yang¹, Zhong Jin¹, Yanwen Ma², Jie Liu³, Zheng Hu¹

Affiliations

¹ Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Provincial Lab for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.
² Jiangsu Key Lab for Organic Electronics and Information Displays & Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210046, China.
³ Department of Chemistry, Duke University, Durham, NC, 27708, USA.

PMID: 25931030
DOI: 10.1002/adma.201500945

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).

Keywords: 3D hierarchical; electrical double layer capacitors; hydrophilic; nitrogen-doped carbon nanocages; ultrahigh supercapacitive performance.