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Mass production of graphene oxide from expanded graphite

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Title: Mass production of graphene oxide from expanded graphite
Authors: Sun, Ling Browse this author
Fugetsu, Bunshi Browse this author →KAKEN DB
Keywords: Expanded graphite
graphene oxide
spontaneous expansion
mass production
Issue Date: 15-Oct-2013
Publisher: Elsevier, B.V.
Journal Title: Material letters
Volume: 109
Start Page: 207
End Page: 210
Publisher DOI: 10.1016/j.matlet.2013.07.072
Abstract: In a deviation from the conventional Hummers method, a spontaneous expansion approach was introduced with expanded graphite as the precursors. The intercalating agent (H2SO4) was able to penetrate into the expanded graphite; this had further expanded the graphite and as a result, a foam-like intermediate was produced. The foam-like graphite was more easily oxidized in reaction with the oxidant (KMnO4) to form graphene oxide (GO). Fully exfoliated GO was obtained with expanded graphite having the median diameter ∼15 μm as the precursors. This procedure was much safer and productive in scalable applications than the conventional Hummers methods.
Relation: http://www.sciencedirect.com/science/journal/0167577X
Type: article (author version)
URI: http://hdl.handle.net/2115/53021
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: SUN, Ling

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