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Co3O4 nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction

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Liang, Yongye, Li, Yanguang, Wang, Hailiang, Zhou, Jigang, Wang, Jian, Regier, Tom, Dai, Hongjie·2011·Nature Materials
DOI 10.1038/nmat3087
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Abstract

Catalysts for oxygen reduction and evolution reactions are at the heart of key renewable-energy technologies including fuel cells and water splitting. Despite tremendous efforts, developing oxygen electrode catalysts with high activity at low cost remains a great challenge. Here, we report a hybrid material consisting of Co₃O₄ nanocrystals grown on reduced graphene oxide as a high-performance bi-functional catalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Although Co₃O₄ or graphene oxide alone has little catalytic activity, their hybrid exhibits an unexpected, surprisingly high ORR activity that is further enhanced by nitrogen doping of graphene. The Co₃O₄/N-doped graphene hybrid exhibits similar catalytic activity but superior stability to Pt in alkaline solutions. The same hybrid is also highly active for OER, making it a high-performance non-precious metal-based bi-catalyst for both ORR and OER. The unusual catalytic activity arises from synergetic chemical coupling effects between Co₃O₄ and graphene.

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Metadata

Authors
Liang, Y., Li, Y., Wang, H., Zhou, J., Wang, J., Regier, T., & Dai, H.
Venue
Nature Materials
Publisher
Springer Science and Business Media LLC
Published
2011-08-07
Volume
10
Issue
10
Pages
780-786
ISSN
  • 1476-1122 (ISSN-L)
  • 1476-4660
DOI
10.1038/nmat3087
OpenAlex
W2146278879
Cited by
5,494
References
4
FWCI
117.17
Type
journal article
Language
en
Open access
green
Licence

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CoChat. (2026). Citation check: Co3O4 nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction. https://app.cochat.ai/papers/10.1038/nmat3087
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Liang, Y., Li, Y., Wang, H., Zhou, J., Wang, J., Regier, T., & Dai, H. (2011). Co3O4 nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction. Nature Materials. https://doi.org/10.1038/nmat3087

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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