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Dai, Liming
Dr. Liming Dai's Group
Research Interests
  • Synthesis

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Nitrogen-Doped Graphene as Efficient Metal-Free Electrocatalyst for Oxygen Reduction in Fuel Cells

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Title
Nitrogen-Doped Graphene as Efficient Metal-Free Electrocatalyst for Oxygen Reduction in Fuel Cells
Author
Qu, LiangtiLiu, YongBaek, Jong-BeomDai, Liming
Keywords
Carbon material; Catalytic materials; Crossover effects; Electrocatalytic activity; Fuel cell application; Long-term operation; N-Doping; Nitrogen-doped; Oxygen Reduction; Oxygen reduction reaction
Issue Date
201003
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.4, no.3, pp.1321 - 1326
Abstract
Nitrogen-doped graphene (N-graphene) was synthesized by chemical vapor deposition of methane in the presence of ammonia. The resultant N-graphene was demonstrated to act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction via a four-electron pathway in alkaline fuel cells. To the best of our knowledge, this is the first report on the use of graphene and its derivatives as metal-free catalysts for oxygen reduction. The important role of N-doping to oxygen reduction reaction (ORR) can be applied to various carbon materials for the development of other metal-free efficient ORR catalysts for fuel cell applications, even new catalytic materials for applications beyond fuel cells.
URI
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DOI
http://dx.doi.org/10.1021/nn901850u
ISSN
1936-0851
Appears in Collections:
ECHE_Journal Papers
MNE_Journal Papers

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