Free-Radical-Promoted Conversion of Graphite Oxide into Chemically Modified Graphene

被引：18

作者：

Chai, Na-Na ^{[1
]}

Zeng, Jing ^{[1
]}

Zhou, Kai-Ge ^{[1
]}

Xie, Yu-Long ^{[1
]}

Wang, Hang-Xing ^{[1
]}

Zhang, Hao-Li ^{[1
]}

Xu, Chen ^{[2
,3
]}

Zhu, Ji-Xin ^{[2
,3
]}

Yan, Qing-Yu ^{[2
,3
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, SKLAOC, Lanzhou 730000, Peoples R China

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[3] Nanyang Technol Univ, TUM CREATE Res Ctr NTU, Singapore 637459, Singapore

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2013年 / 19卷 / 19期

基金：

中国国家自然科学基金;

关键词：

graphene; graphite; radicals; lithium batteries; peroxides; LITHIUM-ION BATTERIES; CARBON NANOTUBES; SIDEWALL FUNCTIONALIZATION; EPITAXIAL GRAPHENE; THERMAL REDUCTION; EPOXIDES; NANOSHEETS; CHEMISTRY; SHEETS; PAPER;

D O I：

10.1002/chem.201203819

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The preparation of chemically modified graphene (CMG) generally involves the reduction of graphite oxide (GO) by using various reducing reagents. Herein, we report a free-radical-promoted synthesis of CMG, which does not require any conventional reductant. We demonstrated that the phenyl free radical can efficiently promote the conversion of GO into CMG under mild conditions and produces phenyl-functionalized CMG. This pseudo-"reduction" process is attributed to a free-radical-mediated elimination of the surface-attached oxygen-containing functionalities. This work illustrates a new strategy for preparing CMG that is alternative to the conventional means of chemical reduction. Furthermore, the phenyl-functionalized graphene shows an excellent performance as an electrode material for lithium-battery applications.

引用

页码：5948 / 5954

页数：7

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