Preparation of nano-networks of MnO2shell/Ni current collector core for high-performance supercapacitor electrodes
- 1 January 2012
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 22 (2), 483-487
- https://doi.org/10.1039/c1jm13894d
Abstract
A novel architecture of nickel current collector (NCC) is fabricated cost-effectively by electrospinning. An ultrathin MnO2 coating is electrodeposited on to the NCC and the resultant nano-networks of MnO2 shell/NCC core are used as supercapacitor electrodes. Excellent electrochemical performance is revealed at a high charge/discharge rate. The cyclic voltammetry measurements show that the current is stable even at a scan rate as fast as 200 mV s−1. A capacitance of 214 F g−1 is obtained by galvanostatic testing at a current density as large as 20 A g−1, which is much higher than that of MnO2 coated Ni foam.Keywords
This publication has 33 references indexed in Scilit:
- In situ synthesis of ultrafine β-MnO2/polypyrrole nanorod composites for high-performance supercapacitorsJournal of Materials Chemistry, 2011
- High‐Performance Supercapacitors Based on Intertwined CNT/V2O5 Nanowire NanocompositesAdvanced Materials, 2011
- Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitorsJournal of Materials Chemistry, 2010
- Heterogeneous nanostructured electrode materials for electrochemical energy storageChemical Communications, 2010
- Synthesis of porous NiO nanocrystals with controllable surface area and their application as supercapacitor electrodesNano Research, 2010
- Anchoring Hydrous RuO2 on Graphene Sheets for High‐Performance Electrochemical CapacitorsAdvanced Functional Materials, 2010
- Symmetric redox supercapacitor based on micro-fabrication with three-dimensional polypyrrole electrodesJournal of Power Sources, 2010
- Effects of carbon on hydrogen storage performances of hydridesJournal of Materials Chemistry, 2010
- Advanced Materials for Energy StorageAdvanced Materials, 2010
- Electrodeposition synthesis and electrochemical properties of nanostructured γ-MnO2 filmsJournal of Power Sources, 2006