Synthesis and systematic characterization of functionalized graphene sheets generated by thermal exfoliation at low temperature

被引：95

作者：

Jin, Meihua ^{[1
]}

Jeong, Hae-Kyung ^{[2
]}

Kim, Tae-Hyung ^{[1
]}

So, Kang Pyo ^{[1
]}

Cui, Yan ^{[1
]}

Yu, Woo Jong ^{[1
]}

Ra, Eun Ju ^{[1
]}

Lee, Young Hee ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Energy Sci,Phys Div BK21, Ctr Nanotubes & Nanostruct Composites, Sungkyunkwan Adv Inst Nanotechnol, Suwon 440746, South Korea

[2] Daegu Univ, Dept Phys, Gyongsan 712714, South Korea

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2010年 / 43卷 / 27期

关键词：

CHEMICAL-VAPOR-DEPOSITION; LARGE-AREA; ELECTRICAL-CONDUCTIVITY; SURFACE-CHEMISTRY; GRAPHITE OXIDES; LAYER GRAPHENE; CARBON-FIBERS; FILMS; INTERCALATION; MOLECULES;

D O I：

10.1088/0022-3727/43/27/275402

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe the low-temperature thermal exfoliation of graphite oxide to obtain functionalized graphene sheets (FGSs). Graphite oxide, which is highly oxidized graphite produced by a modified Brodie method, is further exfoliated by a simple heat treatment at 270-275 degrees C under ambient Ar. The FGSs that are generated have fewer defects and less oxygen content than in commercial graphene sheets (GSs) prepared at high temperatures (>900 degrees C). X-ray photoelectron spectroscopy demonstrates a clear pi-plasmon peak in the FGSs of the type that is seen in precursor graphite, but not in commercial GSs. Thus, our FGSs exhibit high 2D crystallinity and minimal defects.

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页数：7

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