Catalytic Effects of Heteroatom-doped Graphene Nanosheets on the Performance of Li-O2 Batteries

被引：7

作者：

Bae, Youngjoon ^{[1
]}

Lim, Hee-Dae ^{[1
]}

Yun, Young Soo ^{[1
]}

Kang, Kisuk ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea

来源：

JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY | 2014年 / 5卷 / 02期

关键词：

Li-O-2; batteries; graphene; doping; nanosheets; heteroatom; OXYGEN REDUCTION REACTION; AIR BATTERIES;

D O I：

10.5229/JEST.2014.5.2.37

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Graphene nanosheets (GNS), nitrogen-doped graphene nanosheets (N-GNS), and sulfur-doped graphene nanosheets (S-GNS) were successfully synthesized, and their catalytic effects on the oxygen reduction reaction (ORR) in Li-O-2 batteries were compared. The S-GNS electrode exhibited the highest ORR catalytic activity, resulting in enhanced discharge capacity and power capability. We attributed the enhanced ORR catalytic activity to the increased defect sites on graphene.

引用

页数：4

共 20 条

[1] A polymer electrolyte-based rechargeable lithium/oxygen battery [J].

Abraham, KM ;

Jiang, Z .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (01) :1-5

[2]

[Anonymous], 2011, ANGEW CHEM, DOI DOI 10.1002/ANGE.201100879

[3] Screening for Superoxide Reactivity in Li-O2 Batteries: Effect on Li2O2/LiOH Crystallization [J].

Black, Robert ;

Oh, Si Hyoung ;

Lee, Jin-Hyon ;

Yim, Taeeun ;

Adams, Brian ;

Nazar, Linda F. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (06) :2902-2905

[4]

Bruce PG, 2012, NAT MATER, V11, P19, DOI [10.1038/nmat3191, 10.1038/NMAT3191]

[5] High oxygen-reduction activity and durability of nitrogen-doped graphene [J].

Geng, Dongsheng ;

Chen, Ying ;

Chen, Yougui ;

Li, Yongliang ;

Li, Ruying ;

Sun, Xueliang ;

Ye, Siyu ;

Knights, Shanna .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (03) :760-764

[6] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[7] Electrochemical oxygen reduction on nitrogen doped graphene sheets in acid media [J].

Lee, Ki Rak ;

Lee, Kye Ung ;

Lee, Jong Wook ;

Ahn, Byung Tae ;

Woo, Seong Ihl .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (08) :1052-1055

[8] Nitrogen-doped graphene nanosheets as cathode materials with excellent electrocatalytic activity for high capacity lithium-oxygen batteries [J].

Li, Yongliang ;

Wang, Jiajun ;

Li, Xifei ;

Geng, Dongsheng ;

Banis, Mohammad N. ;

Li, Ruying ;

Sun, Xueliang .

ELECTROCHEMISTRY COMMUNICATIONS, 2012, 18 :12-15

[9] Catalytic Activity Trends of Oxygen Reduction Reaction for Nonaqueous Li-Air Batteries [J].

Lu, Yi-Chun ;

Gasteiger, Hubert A. ;

Shao-Horn, Yang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (47) :19048-19051

[10] Nitrogen-Doped Graphene as Efficient Metal-Free Electrocatalyst for Oxygen Reduction in Fuel Cells [J].

Qu, Liangti ;

Liu, Yong ;

Baek, Jong-Beom ;

Dai, Liming .

ACS NANO, 2010, 4 (03) :1321-1326

← 1 2 →