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Nanostructured porous MnO2 film on Ni foam substrate was fabricated via a CV electrodeposited route for the first time. The obtained MnO2 film had a 3D network structure and a high mass loading from 6 to 18 mg cm(-2). This material achieved a maximum specific capacitance of 2790 mF cm(-2) at 2 mA cm(-2) and 864 mF cm(-2) at 20 mA cm(-2), and the specific capacitance can be retained above 90% after 1000 cycles at 5 mA cm(-2). The fabricated AC//MnO2 asymmetric supercapacitor can reach a specific capacitance of 67 F g(-1) and an energy density of 37.22 Wh Kg(-1) with its capacitance retention of 80% after 1000 cycles at 2.5 mA cm(-2). (C) 2014 Elsevier Ltd. All rights reserved.
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ELECTROCHIMICA ACTA
ISSN: 0013-4686
Year: 2014
Volume: 136
Page: 189-194
4 . 5 0 4
JCR@2014
5 . 5 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:268
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
SCOPUS Cited Count: 144
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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