4.7 Article

N-doped carbon spheres with hierarchical micropore-nanosheet networks for high performance supercapacitors

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 81, Pages 12091-12094

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc04832f

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Funding

  1. National Natural Science Foundation of China [21101141, 51173170]
  2. Program for New Century Excellent Talents in Universities (NCET)
  3. Open Project Foundation of State Key Laboratory of Inorganic Synthesis and Preparation Chemistry of Jilin University

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N-doped carbon spheres with hierarchical micropore-nanosheet networks (HPSCSs) were facilely fabricated by a one-step carbonization and activation process of N containing polymer spheres by KOH. With the synergy effect of the multiple structures, HPSCSs exhibit a very high specific capacitance of 407.9 F g(-1) at 1 mV s(-1) (1.2 times higher than that of porous carbon spheres) and a robust cycling stability for supercapacitors.

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