Developing hybrid metal−organic frameworks (MOFs) with ordered structure is significant to obtain promising electrode materials for supercapacitors. Herein, the special electrodes of CuCo 2 O 4 /NiCo-MOF nanoflake vertical arrays are constructed on Ni foam by using the CuCo 2 O 4 nanorods as a selfsacrifice template. Because of the multidirectional interconnected channels of spinel CuCo 2 O 4 , great electrochemical activity of NiCo-MOF, well-arranged morphology, and synergy effect at the interface, the resulting CuCo 2 O 4 /NiCo-MOF nanoflakes exhibit remarkable specific capacity (12.81 F/cm 2 or 1423 F/g at 2 mA/ cm 2 ) and excellent rate performance (remaining 79.2% at 30 mA/ cm 2 ). The asymmetric supercapacitor assembled by CuCo 2 O 4 / NiCo-MOF and an activated carbon electrode shows excellent energy density of 0.48 mWh/cm 2 at a power density of 1.50 mW/cm 2 . This work inspires insight into exploiting hybrid MOFs with highly aligned arrays for energy storage.
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