A One-Step, Solvothermal Reduction Method for Producing Reduced Graphene Oxide Dispersions in Organic Solvents

被引：593

作者：

Dubin, Sergey ^{[2
,3
]}

Gilje, Scott ^{[1
]}

Wang, Kan ^{[2
,3
]}

Tung, Vincent C. ^{[2
,3
]}

Cha, Kitty ^{[2
,3
]}

Hall, Anthony S. ^{[2
,3
]}

Farrar, Jabari ^{[1
]}

Varshneya, Rupal ^{[1
]}

Yang, Yang ^{[2
,3
]}

Kaner, Richard B. ^{[2
,3
]}

机构：

[1] Northrop Grumman Corp, Northrop Grumman Aerosp Res Labs, Redondo Beach, CA 90278 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

来源：

ACS NANO | 2010年 / 4卷 / 07期

关键词：

graphene; graphite oxide; solvothermal; reduced graphene oxide; composite; solar cell; reduction; GRAPHITE OXIDE; FUNCTIONALIZED GRAPHENE; FILMS; SHEETS; TRANSPARENT; EXFOLIATION; N-METHYL-2-PYRROLIDINONE; DYNAMICS; COAL;

D O I：

10.1021/nn100511a

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Refiuxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (MM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24 degrees 20 (3.4 angstrom), confirming the presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.

引用

页码：3845 / 3852

页数：8

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