Preparation of graphite intercalation compounds containing oligo and polyethers

Layered host-polymer nanocomposites comprising polymeric guests between inorganic sheets have been prepared with many inorganic hosts, but there is limited evidence for the incorporation of polymeric guests into graphite. Here we report for the first time the preparation, and structural and composit...

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Bibliographic Details
Published in:Nanoscale 2016-01, Vol.8 (8), p.468-4612
Main Authors: Zhang, Hanyang, Lerner, Michael M
Format: Article
Language:English
Subjects:
Alkali metals
Graphene
Graphite
Intercalation compounds
Nanostructure
Polyethers
Sheet metal
Structural analysis
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Summary:Layered host-polymer nanocomposites comprising polymeric guests between inorganic sheets have been prepared with many inorganic hosts, but there is limited evidence for the incorporation of polymeric guests into graphite. Here we report for the first time the preparation, and structural and compositional characterization of graphite intercalation compounds (GICs) containing polyether bilayers. The new GICs are obtained by either (1) reductive intercalation of graphite with an alkali metal in the presence of an oligo or polyether and an electrocatalyst, or (2) co-intercalate exchange of an amine for an oligo or polyether in a donor-type GIC. Structural characterization of products using powder X-ray diffraction, Raman spectroscopy, and thermal analyses supports the formation of well-ordered, first-stage GICs containing alkali metal cations and oligo or polyether bilayers between reduced graphene sheets. We report the first well-ordered graphite intercalation compounds containing polymeric intercalates with molecular weights up to 6000.
ISSN:2040-3364
2040-3372
DOI:10.1039/c5nr08226a