論文

査読有り
2017年6月

Simple Technique of Exfoliation and Dispersion of Multilayer Graphene from Natural Graphite by Ozone-Assisted Sonication

NANOMATERIALS
  • Zaw Lin
  • ,
  • Paneer Selvam Karthik
  • ,
  • Masaki Hada
  • ,
  • Takeshi Nishikawa
  • ,
  • Yasuhiko Hayashi

7
6
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3390/nano7060125
出版者・発行元
MDPI AG

Owing to its unique properties, graphene has attracted tremendous attention in many research fields. There is a great space to develop graphene synthesis techniques by an efficient and environmentally friendly approach. In this paper, we report a facile method to synthesize well-dispersed multilayer graphene (MLG) without using any chemical reagents or organic solvents. This was achieved by the ozone-assisted sonication of the natural graphite in a water medium. The frequency or number of ozone treatments plays an important role for the dispersion in the process. The possible mechanism of graphene exfoliation and the introduction of functional groups have been postulated. The experimental setup is unique for ozone treatment and enables the elimination of ozone off-gas. The heat generated by the dissipation of ultrasonic waves was used as it is, and no additional heat was supplied. The graphene dispersion was stable, and no evidence of aggregation was observed-even after several months. The characterization results show that well-dispersed MLG was successfully synthesized without any significant damage to the overall structure. The graphene obtained by this method has potential applications in composite materials, conductive coatings, energy storage, and electronic devices.

リンク情報
DOI
https://doi.org/10.3390/nano7060125
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000404049100008&DestApp=WOS_CPL
URL
http://www.mdpi.com/2079-4991/7/6/125
URL
http://orcid.org/0000-0002-4113-5548
ID情報
  • DOI : 10.3390/nano7060125
  • ISSN : 2079-4991
  • ORCIDのPut Code : 33410803
  • Web of Science ID : WOS:000404049100008

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