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Hierarchical Ni(OH) 2 ‐MnO 2 Array as Supercapacitor Electrode with High Capacity
Ist Teil von
Advanced materials interfaces, 2019-02, Vol.6 (3)
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
Abstract Nanoarray electrodes with highly capacitive materials and specific architectures are hopeful to realize advanced supercapacitor performance. The nickel foam (NF) supported hierarchical nanosheet array electrode is fabricated through a template route toward excellent capacitive supercapacitor. The hierarchical nanosheet array weaved with Ni(OH) 2 ‐MnO 2 nanowires provides multiple advantages for porous feature, high surface area, and fast charge transfer. The neighbored Ni(OH) 2 ‐MnO 2 supplies lattice fringes distortion as additional active sites as well as synergism, for improved capacitive performances. As expected, the Ni(OH) 2 ‐MnO 2 /NF electrode manifests high specific capacitance of 14.7 F cm −2 at 2.5 mA cm −2 and good cyclic stability, making it hopeful for highly capacitive supercapacitor application.