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

被引：250

作者：

Nethravathi, C. ^{[1
]}

Nisha, T. ^{[1
]}

Ravishankar, N. ^{[2
]}

Shivakumara, C. ^{[3
]}

Rajamathi, M. ^{[1
]}

机构：

[1] St Josephs Coll, Dept Chem, Mat Res Grp, Bangalore 560027, Karnataka, India

[2] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

[3] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

CARBON | 2009年 / 47卷 / 08期

关键词：

CADMIUM ION ADSORPTION; SEMICONDUCTOR PARTICLES; SURFACE MODIFICATION; CDS NANOPARTICLES; BINARY-LIQUIDS; QUANTUM DOTS; SIZE; ZNS; CARBON; FILMS;

D O I：

10.1016/j.carbon.2009.03.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2054 / 2059

页数：6

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