Oxygen Reduction Reaction in a Droplet on Graphite: Direct Evidence that the Edge Is More Active than the Basal Plane

Anli Shen; Yuqin Zou; Qiang Wang; Robert A. W. Dryfe; Xiaobing Huang; Shuo Dou; Liming Dai; Shuangyin Wang

doi:10.1002/ange.201406695

journal article Aug 14, 2014

Oxygen Reduction Reaction in a Droplet on Graphite: Direct Evidence that the Edge Is More Active than the Basal Plane

Anli Shen Yuqin Zou

Qiang Wang

Robert A. W. Dryfe

Xiaobing Huang Shuo Dou

Liming Dai

Shuangyin Wang

Angewandte Chemie Vol. 126 No. 40 pp. 10980-10984 · Wiley

View at Publisher Save 10.1002/ange.201406695

Abstract

AbstractCarbon‐based metal‐free electrocatalysts for the oxygen reduction reaction (ORR) in alkaline medium have been extensively investigated with the aim of replacing the commercially available, but precious platinum‐based catalysts. For the proper design of carbon‐based metal‐free electrocatalysts for the ORR, it would be interesting to identify the active sites of the electrocatalyst. The ORR was now studied with an air‐saturated electrolyte solution droplet (diameter ca. 15 μm), which was deposited at a specified position either on the edge or on the basal plane of highly oriented pyrolytic graphite. Electrochemical measurements suggest that the edge carbon atoms are more active than the basal‐plane ones for the ORR. This provides a direct way to identify the active sites of carbon materials for the ORR. Ball‐milled graphite and carbon nanotubes with more exposed edges were also prepared and showed significantly enhanced ORR activity. DFT calculations elucidated the mechanism by which the charged edge carbon atoms result in the higher ORR activity.

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References

53

[1]

[2]

Nitrogen-Doped Carbon Nanotube Arrays with High Electrocatalytic Activity for Oxygen Reduction

Kuanping Gong, Feng Du, Zhenhai Xia et al.

Science 10.1126/science.1168049

[3]

10.1021/nn901850u

[4]

10.1016/0022-0728(96)04545-7

[5]

[6]

10.1021/ja1112904

[7]

Dudek M. J. Solid State Electrochem. (2014)

[8]

[9]

10.1021/ja2104334

[10]

10.1002/ange.201303924

[11]

10.1002/anie.201303924

[12]

[13]

10.1002/ange.201100170

[14]

10.1002/anie.201100170

[15]

10.1002/ange.201206720

[16]

10.1002/anie.201206720

[17]

[18]

10.1021/ja209206c

[19]

10.1021/cs400374k

[20]

[21]

10.1021/jz3011833

[22]

10.1016/j.carbon.2013.05.067

[23]

10.1039/c4ta00814f

[24]

10.1002/ange.201307319

[25]

10.1002/anie.201307319

[26]

[27]

10.1039/c4cc00440j

[28]

10.1002/ange.201109257

[29]

10.1002/anie.201109257

[30]

10.1002/ange.201105204

[31]

10.1002/anie.201105204

[32]

[33]

Charge-transfer with graphene and nanotubes

C.N.R. Rao, Rakesh Voggu

Materials Today 10.1016/s1369-7021(10)70163-2

[34]

10.1021/ar300122m

[35]

[36]

10.1021/jp410501u

[37]

10.1021/jp201991j

[38]

[39]

10.1039/b413177k

[40]

10.1039/c3sc52026a

[41]

10.1002/adma.201302753

[42]

10.1021/ja3091643

[43]

10.1038/srep01810

[44]

10.1038/srep02248

[45]

10.1016/s0022-3093(99)00388-9

[46]

[47]

10.1002/adma.201301870

[48]

10.1002/adma.201302569

[49]

10.1002/adma.201400570

[50]

10.1002/ange.201203011

Showing 50 of 53 references

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Details

Published: Aug 14, 2014
Vol/Issue: 126(40)
Pages: 10980-10984
License: View

Authors

Southwest University

Department of Chemistry, The University of Manchester, Manchester M13 9PL, United Kingdom

School of Chemical and Biomedical Engineering Nanyang Technological University 62 Nanyang Drive Singapore 637459 Singapore

L

Liming Dai

Australian Carbon Materials Centre (A-CMC), School of Chemical Engineering, The University of New South Wales Sydney, Sydney, NSW 2052, Australia

S

Shuangyin Wang

Cite This Article

Anli Shen, Yuqin Zou, Qiang Wang, et al. (2014). Oxygen Reduction Reaction in a Droplet on Graphite: Direct Evidence that the Edge Is More Active than the Basal Plane. Angewandte Chemie, 126(40), 10980-10984. https://doi.org/10.1002/ange.201406695

Oxygen Reduction Reaction in a Droplet on Graphite: Direct Evidence that the Edge Is More Active than the Basal Plane

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