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dc.contributor.authorDimiev, Ayrat M.
Tour, James M.
dc.date.accessioned 2014-10-07T21:52:28Z
dc.date.available 2014-10-07T21:52:28Z
dc.date.issued 2014
dc.identifier.citation Dimiev, Ayrat M. and Tour, James M.. "Mechanism of Graphene Oxide Formation." ACS Nano, 8, no. 3 (2014) American Chemical Society: 3060-3068. http://dx.doi.org/10.1021/nn500606a.
dc.identifier.urihttps://hdl.handle.net/1911/77432
dc.description.abstract Despite intensive research, the mechanism of graphene oxide (GO) formation remains unclear. The role of interfacial interactions between solid graphite and the liquid reaction medium, and transport of the oxidizing agent into the graphite, has not been well-addressed. In this work, we show that formation of GO from graphite constitutes three distinct independent steps. The reaction can be stopped at each step, and the corresponding intermediate products can be isolated, characterized, and stored under appropriate conditions. The first step is conversion of graphite into a stage-1 graphite intercalation compound (GIC). The second step is conversion of the stage-1 GIC into oxidized graphite, which we define as pristine graphite oxide (PGO). This step involves diffusion of the oxidizing agent into the preoccupied graphite galleries. This rate-determining step makes the entire process diffusive-controlled. The third step is conversion of PGO into conventional GO after exposure to water, which involves hydrolysis of covalent sulfates and loss of all interlayer registry.
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Mechanism of Graphene Oxide Formation
dc.type Journal article
dc.contributor.funder Air Force Office of Scientific Research
dc.contributor.funder Office of Naval Research
dc.contributor.funder AZ Electronic Materials Corp
dc.citation.journalTitle ACS Nano
dc.contributor.org Smalley Institute for Nanoscale Science and Technology
dc.subject.keywordgraphene oxide
graphite
graphite intercalation compound
dc.citation.volumeNumber 8
dc.citation.issueNumber 3
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1021/nn500606a
dc.identifier.pmid 24568241
dc.identifier.grantID FA9550-09-1-0581 (Air Force Office of Scientific Research )
dc.identifier.grantID FA9550-12-1-0035 (Air Force Office of Scientific Research)
dc.identifier.grantID 00006766 (Office of Naval Research)
dc.identifier.grantID N00014-09-1-1066 (Office of Naval Research)
dc.type.publication publisher version
dc.citation.firstpage 3060
dc.citation.lastpage 3068


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