A novel core-shell polyhedron Co3O4/MnCo2O4.5 as electrode materials for supercapacitors
Source abstract
Abstract
Abstract In this work, manganese was combined with ZIF-67 to form a multi-shell structure, and then the core-shell structure of Co3O4/MnCo2O4.5 as an electrode material was obtained by optimizing the thermal treatment, which perfectly inherited the rhombic dodecahedral shape of the ZIF-67 templates. Benefiting from the composition of core-shell structure and the synergistic effect of bimetallic manganese-cobalt oxides on shell surface, the Co3O4/MnCo2O4.5 reached a specific capacity of 636 F g−1 at a current density of 1 A g−1. Owing to a cycle life of 86% after 5000 charge and discharge cycles, its electrochemical performance had been improved significantly, compared with the Co3O4 acquired by pure ZIF-67 at a specific capacity of 320 F g−1 and a cycle life 79.9%. All of this confirmed the Co3O4/MnCo2O4.5 was an excellent electrode material for the pseudopotential capacitor.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Advancements in Battery Materials
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References (20)
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