Bulk synthesis of highly conducting graphene oxide with long range ordering

Rachana Kumar, Samya Naqvi, Neha Gupta, Kumar Gaurav, Saba Khan, Pramod Kumar, Aniket Rana, Rajiv K. Singh, Ramil Bharadwaj, Suresh Chand

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Graphene oxide with high conductivity is today's demand not only for high quality graphene synthesis but also for direct applications in electronic devices. Here we demonstrate a milder bulk synthesis approach for graphene oxide (mGO) from tattered graphite showing long range ordering and much higher conductivity (27 S m-1) compared to Hummers graphene oxide (H-GO) (0.8 S m-1). A two step mild oxidation process is adapted instead of excessive oxidation of graphite based on Hummers method which creates permanent defects in carbon sheets. This work demonstrates the mild oxidation process for highly conducting GO preparation without use of NaNO3 inhibiting the evolution of toxic gases and also possessing bulk synthesis possibilities.

Original languageEnglish
Pages (from-to)35893-35898
Number of pages6
JournalRSC Advances
Volume5
Issue number45
DOIs
StatePublished - 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2015.

Funding

FundersFunder number
Engineering and Physical Sciences Research CouncilEP/M023532/1

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