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Graphene-nanocrystalline metal sulphide composites produced by a one-pot reaction starting from graphite oxide

Nethravathi, C and Nisha, T and Ravishankar, N and Shivakumara, C and Rajamathi, Michael (2009) Graphene-nanocrystalline metal sulphide composites produced by a one-pot reaction starting from graphite oxide. In: Carbon, 47 (8). pp. 2054-2059.

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Abstract

Graphene-nanocrystalline metal sulphide composites were prepared by a one-pot reaction. A dispersion of graphite oxide layers in an aqueous solution of metal ions (Cd2+/Zn2+) was reacted with H2S gas, which acts as a sulphide source as well as a reducing agent, resulting in the formation of metal sulphide nanoparticles and simultaneous reduction of graphite oxide sheets to graphene sheets. The surface defect related emissions shown by free metal sulphide particles are quenched in the composites due to the interaction of the surface of the nanoparticles with graphene sheets.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Elsevier science.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 23 Jul 2009 06:36
Last Modified: 19 Sep 2010 05:36
URI: http://eprints.iisc.ac.in/id/eprint/21139

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