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Three-Dimensional Nitrogen-Doped Carbon Nanotubes/Graphene Structure Used as a Metal-Free Electrocatalyst for the Oxygen Reduction Reaction

Ma, Yanwen, Sun, Liying, Huang, Wen, Zhang, Lingrong, Zhao, Jin, Fan, Quli, Huang, Wei·2011·The Journal of Physical Chemistry C

Abstract

A three-dimensional (3D) nitrogen-doped carbon nanotubes/graphene (NCNTs/G) composite was prepared by pyrolysis of pyridine over a graphene-sheet-supported Ni catalyst. The morphology and structure of the NCNTs/G composite was investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy. Tangled NCNTs with lengths of several hundred nanometers are sparsely, but tighly, distributed on graphene sheets, forming quasi-aligned NCNT arrays. The N content in the NCNTs/G measured by X-ray photoelectron spectroscopy is about 6.6 at. %. The NCNTs/G shows a higher activity and selectivity to the oxygen reduction reaction in alkaline electrolyte compared with undoped CNTs/G, as demonstrated by cyclic voltammetry, rotating disk electrode, and rotating ring-disk electrode measurements. The results indicate that the 3D NCNTs/G composite has potential application in fuel cells.

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Metadata

Authors
Ma, Y., Sun, L., Huang, W., Zhang, L., Zhao, J., Fan, Q., & Huang, W.
Venue
The Journal of Physical Chemistry C
Published
2011-11-28
Volume
115
Issue
50
Pages
24592-24597
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2326349662
Cited by
176
References
1
FWCI
8.41
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Three-Dimensional Nitrogen-Doped Carbon Nanotubes/Graphene Structure Used as a Metal-Free Electrocatalyst for the Oxygen Reduction Reaction. https://app.cochat.ai/papers/10.1021/jp207736h
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Ma, Y., Sun, L., Huang, W., Zhang, L., Zhao, J., Fan, Q., & Huang, W. (2011). Three-Dimensional Nitrogen-Doped Carbon Nanotubes/Graphene Structure Used as a Metal-Free Electrocatalyst for the Oxygen Reduction Reaction. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp207736h

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