Synthesis of graphene oxide-intercalated a-hydroxides by metathesis and their decomposition to graphene/metal oxide composites

Graphene oxide-intercalated a-metal hydroxides were prepared using layers from the delaminated colloidal dispersions of cetyltrimethylammonium-intercalated graphene oxide and dodecylsulfate-intercalated a-hydroxide of nickel/cobalt as precursors. The reaction of the two dispersions leads to de-inter...

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Bibliographic Details
Published in:Carbon (New York) 2010-12, Vol.48 (15), p.4343-4350
Main Authors: Nethravathi, C, Rajamathi, Michael, Ravishankar, N, Basit, Lubna, Felser, Claudia
Format: Article
Language:English
Subjects:
Carbon
Charging
Decomposition reactions
Dispersions
Graphene
Metal oxides
Nickel
Oxides
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Summary:Graphene oxide-intercalated a-metal hydroxides were prepared using layers from the delaminated colloidal dispersions of cetyltrimethylammonium-intercalated graphene oxide and dodecylsulfate-intercalated a-hydroxide of nickel/cobalt as precursors. The reaction of the two dispersions leads to de-intercalation of the interlayer ions from both the layered solids and the intercalation of the negatively charged graphene oxide sheets between the positively charged layers of the a-hydroxide. Thermal decomposition of the intercalated solids yields graphene/nanocrystalline metal oxide composites. Electron microscopy analysis of the composites indicates that the nanoparticles are intercalated between graphene layers.
ISSN:0008-6223
DOI:10.1016/j.carbon.2010.07.047