Oxygen-rich hierarchical porous carbon derived from artemia cyst shells with superior electrochemical performance

Yufeng Zhao*, Wei Ran, Jing He, Yanfang Song, Chunming Zhang, Ding Bang Xiong, Faming Gao, Jinsong Wu, Yongyao Xia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

195 Scopus citations

Abstract

In this study, three-dimensional (3D) hierarchical porous carbon with abundant functional groups is produced through a very simple low-cost carbonization of Artemia cyst shells. The unique hierarchical porous structure of this material, combining large numbers of micropores and macropores, as well as reasonable amount of mesopores, is proven favorable to capacitive behavior. The abundant oxygen functional groups from the natural carbon precursor contribute stable pseudocapacitance. As-prepared sample exhibits high specific capacitance (369 F g-1 in 1 M H2SO4 and 349 F g-1 in 6 M KOH), excellent cycling stability with capacitance retention of 100% over 10 000 cycles, and promising rate performance. This work not only describes a simple way to produce high-performance carbon electrode materials for practical application, but also inspires an idea for future structure design of porous carbon. (Graph Presented).

Original languageEnglish (US)
Pages (from-to)1132-1139
Number of pages8
JournalACS Applied Materials and Interfaces
Volume7
Issue number2
DOIs
StatePublished - Jan 21 2015

Keywords

  • Carbon
  • Hierarchical porous
  • Natural carbon source
  • Oxygen-rich
  • Supercapacitor

ASJC Scopus subject areas

  • Materials Science(all)

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