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Fe3O4‐Decorated Co9S8 Nanoparticles In Situ Grown on Reduced Graphene Oxide: A New and Efficient Electrocatalyst for Oxygen Evolution Reaction

Yang, Jing, Zhu, Guoxing, Liu, Yuanjun, Xia, Jiexiang, Ji, Zhenyuan, Shen, Xiaoping, Wu, Shikui·2016·Advanced Functional Materials

Abstract

Cobalt sulfide materials have attracted enormous interest as low‐cost alternatives to noble‐metal catalysts capable of catalyzing both oxygen reduction and oxygen evolution reactions. Although recent advances have been achieved in the development of various cobalt sulfide composites to expedite their oxygen reduction reaction properties, to improve their poor oxygen evolution reaction (OER) activity is still challenging, which significantly limits their utilization. Here, the synthesis of Fe 3 O 4‐decorated Co 9 S 8 nanoparticles in situ grown on a reduced graphene oxide surface (Fe 3 O 4@Co 9 S 8/rGO) and the use of it as a remarkably active and stable OER catalyst are first reported. Loading of Fe 3 O 4 on cobalt sulfide induces the formation of pure phase Co 9 S 8 and highly improves the catalytic activity for OER. The composite exhibits superior OER performance with a small overpotential of 0.34 V at the current density of 10 mA cm−2 and high stability. It is believed that the electron transfer trend from Fe species to Co 9 S 8 promotes the breaking of the Co–O bond in the stable configuration (Co–O–O superoxo group), attributing to the excellent catalytic activity. This development offers a new and effective cobalt sulfide‐based oxygen evolution electrocatalysts to replace the expensive commercial catalysts such as RuO 2 or IrO 2.

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Metadata

Authors
Yang, J., Zhu, G., Liu, Y., Xia, J., Ji, Z., Shen, X., & Wu, S.
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2016-05-09
Volume
26
Issue
26
Pages
4712-4721
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2345399244
Cited by
382
References
6
FWCI
16.27
Type
journal article
Language
en
Open access
closed
Funders
National Natural Science Foundation of China (51102117, 51203069, 51272094)

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CoChat. (2026). Citation check: Fe3O4‐Decorated Co9S8 Nanoparticles In Situ Grown on Reduced Graphene Oxide: A New and Efficient Electrocatalyst for Oxygen Evolution Reaction. https://app.cochat.ai/papers/10.1002/adfm.201600674
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Yang, J., Zhu, G., Liu, Y., Xia, J., Ji, Z., Shen, X., & Wu, S. (2016). Fe3O4‐Decorated Co9S8 Nanoparticles In Situ Grown on Reduced Graphene Oxide: A New and Efficient Electrocatalyst for Oxygen Evolution Reaction. Advanced Functional Materials. https://doi.org/10.1002/adfm.201600674

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