Issue 37, 2015
From the journal:

Nanoscale

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

Y. S. Yun,a   D.-H. Kim,a   S. J. Hong,b   M. H. Park,c   Y. W. Park,b   B. H. Kim,d   H.-J. Jin*c  and  K. Kang*ae  

* Corresponding authors

a Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, South Korea
E-mail: matlgen1@snu.ac.kr

b Department of Physics and Astronomy, Seoul National University, Seoul 151-747, South Korea

c Department of Polymer Science and Engineering, Inha University, Incheon 402-751, South Korea
E-mail: hjjin@inha.ac.kr

d Department of Physics, Incheon National University, Incheon 406-772, South Korea

e Center for Nanoparticle Research, Institute for Basic Science (IBS), South Korea

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.

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

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Article information

DOI
https://doi.org/10.1039/C5NR04231C
Article type
Communication
Submitted
25 Jun 2015
Accepted
12 Aug 2015
First published
19 Aug 2015

Nanoscale, 2015,7, 15051-15058

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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 and K. Kang, Nanoscale, 2015, 7, 15051 DOI: 10.1039/C5NR04231C

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