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- W2990819097 abstract "Abstract Due to its good chemical stability and outstanding redox properties, CeO2 has been regarded as a promising electrode material for supercapacitors, but its specific capacity is quite low which restricts its wide-range applications. To enhance its specific capacity, in this study, specially designed mesoporous Zr-doped CeO2 nanostructures with large surface area, extraordinarily high porosity and abundant oxygen vacancies were fabricated using a hydrothermal method and an assisted calcination process. The synthesized mesoporous CeO2-Zr-1 nanostructures (with an atomic ratio of Ce:Zr = 10:1) were composed of nanocrystals with an average size of 6.7 nm, and had a large surface area of 81.0 m2 g−1, and abundant mesopores with a volume of 0.2108 cm3 g−1. In 2 M KOH electrolyte, the CeO2-Zr-1 electrode generated a much larger specific capacity (448.1 C g−1) than that of the pristine CeO2 (249.3 C g−1) at a current density of 1 A g−1. An asymmetric supercapacitor of CeO2-Zr-1//activated carbon produced a high energy storage density of 23.3 Wh kg−1 at 398.5 W kg−1, and an excellent long-term cycling stability with 96.4% capacity retention after 6000 cycles." @default.
- W2990819097 created "2019-12-05" @default.
- W2990819097 creator A5003486476 @default.
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- W2990819097 date "2020-01-01" @default.
- W2990819097 modified "2023-10-11" @default.
- W2990819097 title "Mesoporous Zr-doped CeO2 nanostructures as superior supercapacitor electrode with significantly enhanced specific capacity and excellent cycling stability" @default.
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- W2990819097 doi "https://doi.org/10.1016/j.electacta.2019.135366" @default.
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