Synthesis of few-layer graphene over gold nanoclusters supported on MgO

被引：31

作者：

Biris, Alexandru Radu ^{[2
]}

Ardelean, Stefania ^{[2
]}

Lazar, Mihaela D. ^{[2
]}

Dervishi, Enkeleda ^{[1
]}

Watanabe, Fumiya ^{[1
]}

Ghosh, Anindya ^{[1
]}

Biswas, Abhijit ^{[3
]}

Biris, Alexandru S. ^{[1
]}

机构：

[1] Univ Arkansas, UALR Nanotechnol Ctr, Dept Syst Engn, Dept Chem, Little Rock, AR 72204 USA

[2] Natl Inst Res & Dev Isotop & Mol Technol, Cluj Napoca, Romania

[3] Univ Notre Dame, Dept Elect Engn, Ctr Nano Sci & Technol NDnano, Notre Dame, IN 46556 USA

来源：

CARBON | 2012年 / 50卷 / 06期

基金：

美国国家科学基金会;

关键词：

OXIDATIVE COUPLING REACTIONS; CHEMICAL-VAPOR-DEPOSITION; CARBON NANOTUBES; RADIO-FREQUENCY; SURFACE-AREA; HIGH-QUALITY; OXIDE-FILMS; PURIFICATION; CATALYSTS; NANOSCALE;

D O I：

10.1016/j.carbon.2012.01.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We present the successful design and synthesis of few-layer graphenes over an Au/MgO catalytic system by chemical vapor deposition with methane as the carbon source. The resulting structures were composed of a few graphitic layers, and the highest synthesis yield was found to be 62% when the methane flow rate was 120 mL/min. The dimension of the in-plane crystallites was found to increase with the reaction time. A simple purification step was used to remove the MgO support that resulted in graphene sheets decorated with Au nanoparticles. Such an approach makes it possible to synthesize high purity Au-graphene nanostructured composites by using a single reaction step and without the need for additional functionalization or attachment. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2252 / 2263

页数：12

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