Sandwich-type ordered mesoporous carbon/graphene nanocomposites derived from ionic liquid

Ho Seok Kim, Young Hwan Kim, Kwang Chul Roh, Kwang Bum Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Sandwich-type ordered mesoporous carbon/graphene nanocomposites were successfully synthesized using 2D ordered mesoporous silica/graphene nanocomposites as the hard template and an ionic liquid as a N-rich carbon source. We used an ionic liquid of 1-(3-cyanopropyl)-3-methylimidazolium dicyanamide containing nitrile groups (–CN) in the cation and anion as a carbon precursor for the preparation of the nanocomposites. Nitriles do not decompose under thermal treatment in an inert gas atmosphere, but leave significant amounts of N-rich carbon materials. The nanocomposites had a large surface area (1,316 m2·g–1), an average pore diameter of 5.9 nm, and high electrical conductivity. The nanocomposite electrode showed a high specific capacitance of 190 F·g–1 at 0.5 A·g–1 in 1 M TEABF4/AN electrolyte and a good rate capability between 0 and 2.7 V for supercapacitor (or ultracapacitor) applications. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2696-2706
Number of pages11
JournalNano Research
Volume9
Issue number9
DOIs
Publication statusPublished - 2016 Sep 1

Fingerprint

Ionic Liquids
Graphite
Ionic liquids
Graphene
Nanocomposites
Carbon
Nitriles
Noble Gases
Inert gases
Silicon Dioxide
Electrolytes
Anions
Cations
Capacitance
Negative ions
Positive ions
Heat treatment
Silica
Electrodes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Kim, Ho Seok ; Kim, Young Hwan ; Roh, Kwang Chul ; Kim, Kwang Bum. / Sandwich-type ordered mesoporous carbon/graphene nanocomposites derived from ionic liquid. In: Nano Research. 2016 ; Vol. 9, No. 9. pp. 2696-2706.
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Sandwich-type ordered mesoporous carbon/graphene nanocomposites derived from ionic liquid. / Kim, Ho Seok; Kim, Young Hwan; Roh, Kwang Chul; Kim, Kwang Bum.

In: Nano Research, Vol. 9, No. 9, 01.09.2016, p. 2696-2706.

Research output: Contribution to journalArticle

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