Journal
RSC ADVANCES
Volume 8, Issue 67, Pages 38631-38640Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra05890c
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Funding
- National Natural Science Foundation of China [11504267, 11504269]
- Doctoral Fund of Tianjin Normal University [52XB1518]
- Tianjin municipal education commission scientific research project [2017KJ238]
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Reduced graphene oxide coated carbon cloth has been used as a substrate for the growth of ultrafine MnO2 nanowires (CC/RGO/MnO2), forming binder-free and flexible supercapacitor electrode materials. The experimental results indicate that a maximum area-specific capacitance of 506.8 mF cm(-2) was gained from the CC/RGO/MnO2 electrode at the current density of 0.128 mA cm(-2). Furthermore, the electrode exhibits excellent cycling stability (98.6% specific capacitance was still retained after 10000 galvanostatic charge-discharge (GCD) tests when the current density was 1.28 mA cm(-2)). What's more, the area-specific capacitance of the CC/RGO/MnO2 electrode was hardly changed, when the electrode was operated under bending mechanical conditions. In addition, the charge storage performance and mechanism of the MnO2 nanostructures was discussed.
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