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- W4382393947 abstract "Three-dimensional (3D) cage-like network architecture is constructed by cobalt oxide nanowires on porous nickel foam (donated as 3D cage-like Co3O4/NF) via a mild hydrothermal method. A series of measurements including X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) are used to characterize the crystal structure, component and morphology of the as-prepared sample. The 3D cage-like hierarchical nanostructure increases utilization of active materials and shortens electrolyte ion transport pathway during the charging/discharging processes, leading to the excellent capacitive properties of the electrode materials. In a three-electrode system, the resultant electrode exhibits higher specific capacitance of 642 F g-1 and great rate capability (88% capacity retention at 10 A g-1) in 3 M KOH solution. Importantly, the assembled asymmetric supercapacitor with a potential window of 1.7 V, in which 3D cage-like Co3O4/NF and graphene hydrogel (GH) are served as positive and negative electrode respectively, achieves the energy density of 31 Wh kg-1 along with power density of 854 W kg-1, indicating a promising potential in the applications of energy storage." @default.
- W4382393947 created "2023-06-29" @default.
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- W4382393947 date "2016-05-01" @default.
- W4382393947 modified "2023-10-12" @default.
- W4382393947 title "Three-dimensional Cage-like Co3O4Structure Constructed by Nanowires for Supercapacitor" @default.
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- W4382393947 doi "https://doi.org/10.1016/s1452-3981(23)17462-1" @default.
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