Fabrication of high quality graphene nanosheets via a spontaneous electrochemical reaction process

Jang Woo Lee, Minho Kim, Wonjun Na, Soon Man Hong, Chong Min Koo

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A highly efficient graphene nanosheet (GNS) production process based on spontaneous electrochemical reactions - (i) spontaneous lithiation reaction through the direct contact between graphite powder and Li metal in an electrolyte due to the high electrochemical potential difference; and (ii) reaction of Li inside the lithiated graphite with water - is reported. This process, with the absence of supplied energies, is oxidation-free, very fast, scalable and produces a high quality GNS (C/O: 17.9 by EA, ID/IG: 0.55 by Raman spectroscopy) with a high yield (>95 wt.%).

Original languageEnglish
Pages (from-to)527-534
Number of pages8
Publication statusPublished - 2015 May 30
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the Fundamental R&D Program for Technology of World Premier Materials, Fundamental R&D Program for Core Technology of Materials and the Industrial Strategic Technology Development Program funded by the Ministry of Trade, Industry and Energy, Republic of Korea and partially by the Institute for Multi-disciplinary Convergence of Materials (IMCM) of the Korea Institute of Science and Technology (KIST). This work was also supported by Pohang Light Sources. The authors would also like to give thanks to C.H. Shim at Advanced Analysis Center, KIST.

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science


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