Microporous carbon nanosheets with redox-active heteroatoms for pseudocapacitive charge storage

Y. S. Yun, D. H. Kim, S. J. Hong, M. H. Park, Y. W. Park, B. H. Kim, H. J. Jin, K. Kang

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

We report microporous carbon nanosheets containing numerous redox active heteroatoms fabricated from exfoliated waste coffee grounds by simple heating with KOH for pseudocapacitive charge storage. We found that various heteroatom combinations in carbonaceous materials can be a redox host for lithium ion storage. The bio-inspired nanomaterials had unique characteristics, showing superior electrochemical performances as cathode for asymmetric pseudocapacitors.

Original languageEnglish
Pages (from-to)15051-15058
Number of pages8
JournalNanoscale
Volume7
Issue number37
DOIs
Publication statusPublished - 2015 Oct 7
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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