Large-Scale Synthesis of Few-Layered Graphene using CVD

被引：158

作者：

Wang, Xianbao ^{[1
,2
]}

You, Haijun

Liu, Fangming ^{[1
]}

Li, Mingjian ^{[1
]}

Wan, Li ^{[1
]}

Li, Shaoqing ^{[1
]}

Li, Qin

Xu, Yang

Tian, Rong ^{[1
]}

Yu, Ziyong

Xiang, Dong

Cheng, Jing ^{[3
]}

机构：

[1] Hubei Univ, Fac Mat Sci & Engn, Wuhan 430062, Peoples R China

[2] Hubei Univ, Minist Educ, Key Lab Green Preparat & Applicat Funct Mat, Wuhan 430062, Peoples R China

[3] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol Educ, Wuhan 430079, Peoples R China

来源：

CHEMICAL VAPOR DEPOSITION | 2009年 / 15卷 / 1-3期

关键词：

Few-layered graphene; Nanostructures; GRAPHITE; CARBON; PHASE;

D O I：

10.1002/cvde.200806737

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Large-scale, substrate-free graphene, with few-layered sheets, is synthesized by the CVD of methane over cobalt supported on magnesium oxides at 1000 degrees C in a gas flow of argon. Typically, 50 mg of the few-layered graphene materials over 500 mg of the Co/MgO catalysts are synthesized under our experimental conditions. Randomly aggregated, thin, crumpled graphene sheets stacked closely together are produced. Both carbon (94.6 at.-%) and oxygen (5.4 at.-%) are present in the graphene sheets. The oxygen may originate from air adsorbed on the graphene sheets. Our results indicate the presence of localized sp(3) defects within the sp(2) carbon network and small sp(2) domains in the few-layered graphene particles.

引用

页码：53 / 56

页数：4

共 27 条

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