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Graphene exfoliation with supercritical fluids

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2021, 31(1), pp.99-105
  • DOI : 10.1007/s42823-020-00153-x
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : January 13, 2020
  • Accepted : May 12, 2020
  • Published : February 1, 2021

Rodolfo Morales Ibarra 1 Motonobu Goto 2 Juan García-Serna 1 Saida Mayela García Montes 1

1
2Department of Materials Process Engineering, Nagoya University

Accredited

ABSTRACT

Graphene is an unconventional material with a two-dimensional hexagonal crystalline array of elemental carbon atoms and outstanding properties; accordingly, a desirable objective in the line of research of graphene is the development of novel and more productive methods of synthesis, validating its properties and applications. In our exploratory research, we have effectively exfoliated graphene from graphite using supercritical fluids (water, ethanol and carbon dioxide). The exfoliated graphene was properly characterized; via scanning electron microscopy, the morphology of graphene was observed; Raman spectra confirmed the exfoliation of graphene depicting the characteristic shift towards smaller Raman number in the 2D band (2676 cm−1) compared to that of graphite (≈ 2700 cm−1); transmission electron microscopy analysis exhibited the crystalline structure of graphene attesting also the expected transparency of exfoliated layers. Graphene exfoliation from graphite by supercritical fluids promises to be a simple large-scale method for graphene production.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-13)

Total Citation Counts(KCI+WOS) (13) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (13) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2023-10-01)

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