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Room-Temperature Fabrication of a Nickel-Functionalized Copper Metal–Organic Framework ([email protected]) as a New Pseudocapacitive Material for Asymmetric Supercapacitors

1
College of Chemistry and Material Engineering, Gui Yang University, Guiyang 550005, China
2
School of Material Science and Engineering, Han Shan Normal University, Chaozhou 521041, China
*
Authors to whom correspondence should be addressed.
The authors contribute equally.
Polymers 2019, 11(5), 821; https://doi.org/10.3390/polym11050821
Received: 8 April 2019 / Revised: 26 April 2019 / Accepted: 3 May 2019 / Published: 7 May 2019
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PDF [2215 KB, uploaded 7 May 2019]
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Abstract

A nickel-functionalized copper metal–organic framework ([email protected]) was prepared by a facile volatilization method and a post-modification synthesis method at room temperature. The obtained [email protected] electrode delivered a high capacitance of 526 F/g at 1 A/g and had a long-term cycling stability (80% retention after 1200 cycles at 1 A/g) in a 6 M KOH aqueous solution. Furthermore, an asymmetric supercapacitor device was assembled from this [email protected] and activated carbon electrodes. The fabricated supercapacitor delivered a high capacitance of 48.7 F/g at 1 A/g and a high energy density of 17.3 Wh/kg at a power density of 798.5 kW/kg. This study indicates that the [email protected] has great potential for supercapacitor applications. View Full-Text
Keywords: nickel-functionalized metal–organic frameworks; asymmetric supercapacitor; energy storage nickel-functionalized metal–organic frameworks; asymmetric supercapacitor; energy storage
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Wang, Y.; Nie, S.; Liu, Y.; Yan, W.; Lin, S.; Cheng, G.; Yang, H.; Luo, J. Room-Temperature Fabrication of a Nickel-Functionalized Copper Metal–Organic Framework ([email protected]) as a New Pseudocapacitive Material for Asymmetric Supercapacitors. Polymers 2019, 11, 821.

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