New approach for the reduction of graphene oxide with triphenylphosphine dihalide

Hong Suk Shin, Ki Woong Kim, Yong Goo Kang, Sung Myung, Jong Seung Kim, Ki Seok An, Ill Young Lee, Sun Sook Lee

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We developed a one-flask method for the thermal reduction of graphene oxide (GO) with triphenylphosphine dihalide (Ph3PX2) at 180 °C. Our approach offers a potential to cost-effective mass-production of graphene nanosheets under mild and environmentally friendly conditions and to avoid the use of strong acids or reducing agents. Significantly, this reduced graphene oxide (rGO) by utilizing a Ph3PX2 reductant has a C/O ratio higher than 15 and an electrical conductivity of 400 S cm-1, which indicate that this synthetic method allows us to achieve graphene nanosheets with high quality when comparing with previous reduction methods.

Original languageEnglish
Pages (from-to)18809-18813
Number of pages5
JournalRSC Advances
Issue number23
Publication statusPublished - 2016

Bibliographical note

Funding Information:
This research was supported by a grant (2011-0031636) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea and by INNOPOLIS FOUNDATION grant funded by the Korea government (MSIP) through the Korean Research Institute of Chemical Technology with grant number (No. 15DDI825). This subject was also supported by Korea Ministry of Environment (MOE) as "the Chemical Accident Prevention Technology Development Project".

Publisher Copyright:
© The Royal Society of Chemistry 2016.

Copyright 2018 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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