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Hierarchical MnO2 Spheres Decorated by Carbon-Coated Cobalt Nanobeads: Low-Cost and High-Performance Electrode Materials for Supercapacitors

Zhi, Jian ; Reiser, Oliver ; Huang, Fuqiang



Abstract

MnO2 is a promising electrode material for supercapacitors, because it exhibits high theoretical specific capacitance (1380 F g(-1)) for electrical charge while also being inexpensive and environmentally benign. However, owing to its low electrical conductivity, the intrinsic pseudocapacity of is In MnO2 not fully utilized. this work, hierarchically structured spheres composed of MnO2 ...

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