A hierarchically porous CuCo<sub>2</sub>S<sub>4</sub>/graphene composite as an electrode material for supercapacitors

LIU Li-le; K. P. Annamalai; TAO You-sheng

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LIU Li-le, K. P. Annamalai, TAO You-sheng. A hierarchically porous CuCo2S4/graphene composite as an electrode material for supercapacitors. New Carbon Mater., 2016, 31(3): 336-342.

Citation:

LIU Li-le, K. P. Annamalai, TAO You-sheng. A hierarchically porous CuCo₂S₄/graphene composite as an electrode material for supercapacitors. New Carbon Mater., 2016, 31(3): 336-342.

LIU Li-le, K. P. Annamalai, TAO You-sheng. A hierarchically porous CuCo2S4/graphene composite as an electrode material for supercapacitors. New Carbon Mater., 2016, 31(3): 336-342.

Citation:

LIU Li-le, K. P. Annamalai, TAO You-sheng. A hierarchically porous CuCo₂S₄/graphene composite as an electrode material for supercapacitors. New Carbon Mater., 2016, 31(3): 336-342.

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A hierarchically porous CuCo₂S₄/graphene composite as an electrode material for supercapacitors

1.
College of Chemistry, Fuzhou University, Fuzhou 350108, China;
2.
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Haixi Institutes, Chinese Academy of Sciences (CAS), Fuzhou 350002, China

Funds: National Natural Science Foundation of China (21273236);Science and Technology Planning Projects of Fujian Province of China (2014H2008, 2015I0008);"100 Talents" Program of Chinese Academy of Sciences;"100 Talents" Program of Fujian Province, China.

Received Date: 2016-05-08
Accepted Date: 2016-06-28
Rev Recd Date: 2016-06-12
Publish Date: 2016-06-28

Abstract

Abstract

A CuCo₂S₄/graphene composite was synthesized using a simple hydrothermal method. The sample was characterized by field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, nitrogen adsorption and electrochemical tests. The composite had a hierarchical porous structure with micropores of 0.7-1.2 nm, mesopores of 2-10 nm and a total pore volume of 0.1 cm³·g^-1, and the CuCo₂S₄ had a nano-belt structure. As the electrode of a supercapacitor the composite showed a high specific capacitance of 665 F/g at 7.5 mV/s, and excellent rate capability and cycling stability.
- Graphene,
- Metal sulfide,
- Composite,
- Micropore,
- Mesopore,
- Supercapacitor

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References(40)

References

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