Ternary nickel cobaltite has attracted more and more attention as a promising electrode material for high performance supercapacitors (SCs) due to its high theoretical capacity, unique crystal structure and excellent electronic conductivity.
A MOF-derived NiO–NiCo2O4@PPy hollow polyhedron is prepared as a sulfur host to effectively enhance cell performance. S/NiO–NiCo2O4@PPy displays a high initial discharge capacity of 963 mA h g−1 with a high initial coulombic efficiency of 95.2% at 0.2C.
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