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Ultrathin Mesoporous NiCo2O4 Nanosheets Supported on Ni Foam as Advanced Electrodes for Supercapacitors

Yuan, Changzhou, Li, Jiaoyang, Hou, Linrui, Zhang, Xiaogang, Shen, Laifa, Lou, Xiong Wen (David)·2012·Advanced Functional Materials

Abstract

A facile two‐step method is developed for large‐scale growth of ultrathin mesoporous nickel cobaltite (NiCo 2 O 4) nanosheets on conductive nickel foam with robust adhesion as a high‐performance electrode for electrochemical capacitors. The synthesis involves the co‐electrodeposition of a bimetallic (Ni, Co) hydroxide precursor on a Ni foam support and subsequent thermal transformation to spinel mesoporous NiCo 2 O 4. The as‐prepared ultrathin NiCo 2 O 4 nanosheets with the thickness of a few nanometers possess many interparticle mesopores with a size range from 2 to 5 nm. The nickel foam supported ultrathin mesoporous NiCo 2 O 4 nanosheets promise fast electron and ion transport, large electroactive surface area, and excellent structural stability. As a result, superior pseudocapacitive performance is achieved with an ultrahigh specific capacitance of 1450 F g−1, even at a very high current density of 20 A g−1, and excellent cycling performance at high rates, suggesting its promising application as an efficient electrode for electrochemical capacitors.

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Metadata

Authors
Yuan, C., Li, J., Hou, L., Zhang, X., Shen, L., & Lou, X. W. (.
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2012-06-26
Volume
22
Issue
21
Pages
4592-4597
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W1967513663
Cited by
1,688
References
1
FWCI
48.93
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Ultrathin Mesoporous NiCo2O4 Nanosheets Supported on Ni Foam as Advanced Electrodes for Supercapacitors. https://app.cochat.ai/papers/10.1002/adfm.201200994
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Yuan, C., Li, J., Hou, L., Zhang, X., Shen, L., & Lou, X. W. (. (2012). Ultrathin Mesoporous NiCo2O4 Nanosheets Supported on Ni Foam as Advanced Electrodes for Supercapacitors. Advanced Functional Materials. https://doi.org/10.1002/adfm.201200994

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