6 Application of Oxygen Reduction Catalysts
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Fig. 6.15 Schematic diagram and discharge curve of a functionalized graphene three-dimensional
electrode [71]
Fig. 6.16 Cycle performance of manganese oxide electrodes with different morphologies, sizes,
compositions and crystal forms [72]
Fig. 6.17 Schematic diagram of self-supporting Co 3 O 4 electrode charging and discharging [73]