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| Title
| - Magnetically Modified Single and Turbostratic Stacked Graphenes from Tris(2,2′-bipyridyl) Iron(II) Ion-Exchanged Graphite Oxide
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| Abstract
| - Loading of graphite oxide (GO) with tris(2,2′-bipyridyl) iron(II) ions and subsequent calcination affords a novel graphene-based composite with magnetic and electrically conductive properties. The pH of the starting aqueous suspension and the washing procedure play a crucial role in the successful immobilization of the iron precursor, which is mainly governed by ion exchange. The complex is intercalated between the graphene oxide layers, where it adopts a distorted conformation. Rapid heating of this solid results in the deflagration of GO and the formation of ultrafine (d = 2−14 nm) Fe2O3 particles with maghemite as the dominant phase. The superparamagnetic maghemite crystals are dispersed uniformly in the high-surface-area diamagnetic matrix built up from single or turbostratic stacked graphenes.
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| Alternative Title
| - Magnetically Modified Stacked Graphenes
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