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题目:

Network-Like Mesoporous NiCo2O4 Grown on Carbon Cloth for High-Performance Pseudocapacitors

 

 

作者:

Suning Gao, Fan Liao,* Shuzhen Ma, Lili Zhu and Mingwang Shao*

 

 

单位:

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China.

 

 

摘要:

Network-like mesoporous NiCo2O4 arrays were grown on flexible carbon cloth via a hydrothermal method first assisted by polyethylene oxide–polypropylene oxide–polyethylene oxide and ethylene glycol followed by thermal treatment. These arrays were made up of nanoflakes (thickness varies from 5 to 15 nm) and multilevel pores, giving a vast specific surface area of 130.2 m2 g -1. The as-prepared products were fabricated into electrodes to conduct electrochemical experiments. The results showed a high capacitance of 1843.3 F g-1 (volume capacitance of 33.8 F cm -3) at 1 A g-1, satisfied constant rate performance of 80% shifting from 1 to 32 A g -1 (1481 F g -1), and only a 10% loss of its capacitance even after 4000 recycles at a consistent current density of 10 A g -1. A symmetric supercapacitor based on NWM NiCo2O4 was assembled and it exhibited a high specific capacitance of 269 F g-1 at 1 A g-1 and a preferable energy density of 38.3 W h kg-1 at a power density of 396 W kg -1. The optimum overall performance of both high rate capability and cycle stability make the network-like mesoporous NiCo2O4 the prime candidate for application in electrochemical supercapacitors.

 

 

影响因子:

7.443

 

 

分区情况:

1

 

 

链接:

http://pubs.rsc.org/en/content/articlepdf/2015/ta/c5ta02876k


 

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