Formation of Large-Area Nitrogen-Doped Graphene Film Prepared from Simple Solution Casting of Edge-Selectively Functionalized Graphite and Its Electrocatalytic Activity

被引：156

作者：

Jeon, In-Yup ^{[1
]}

Yu, Dingshan ^{[2
]}

Bae, Seo-Yoon ^{[1
]}

Choi, Hyun-Jung ^{[1
]}

Chang, Dong Wook ^{[1
]}

Dai, Liming ^{[1
,2
]}

Baek, Jong-Beom ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Interdisciplinary Sch Green Energy, Inst Adv Mat & Devices, Ulsan 689798, South Korea

[2] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

graphite; graphene; edge-functionalization; nitrogen-doped graphene; electrocatalytic activity; OXYGEN REDUCTION; THIN-FILM; CARBON;

D O I：

10.1021/cm201542m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

"Pristine" graphite is edge-selectively functionalized with 4-aminobenzoic acid by a "direct" Friedel Crafts acylation reaction in a polyphosphoric acid/phosphorus pentoxide medium to produce 4-aminobenzoyl edge-functionalized graphite (EFG). The EFG is readily dispersible in N-methyl-2-pyrrolidone (NMP). Subsequent solution casting leads to the formation of large-area graphene film on a silicon wafer. The film shows sheet resistances of 60 and 200 Omega/sq, respectively, before and after heat treatment at 900 degrees C in an argon atmosphere. Upon the heat treatment, the EFG film becomes a N-doped graphene (N-graphene) film to display outstanding electrocatalytic activity for oxygen reduction reaction (ORR).

引用

页码：3987 / 3992

页数：6

共 31 条

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