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- W2739542464 abstract "Abstract By a simple and cost effective chemical precipitation-hydrothermal method, novel hierarchical structured Sm2O3 modified CuO nanoflowers are prepared and investigated as electrode materials for supercapacitors. The physical properties of prepared materials are characterized by XRD, FE-SEM, EDX and FTIR techniques. Furthermore, electrochemical performances of prepared materials are investigated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectrum in 1.0 M KOH electrolyte. The resulting Sm2O3 modified CuO based electrodes exhibit obviously enhanced capacitive properties owing to the unique nanostructures and strong synergistic effects. It is worth noting that the optimized SC-3 based electrode exhibits the best electrochemical performances in all prepared electrodes, including higher specific capacitance (383.4 F g−1 at 0.5 A g−1) and good rate capability (393.2 F g−1 and 246.3 F g−1 at 0.3 A g−1 and 3.0 A g−1, respectively), as well as excellent cycling stability (84.6% capacitance retention after 2000 cycles at 1.0 A g−1). The present results show that Sm2O3 is used as a promising modifier to change the morphology and improve electrochemical performances of CuO materials." @default.
- W2739542464 created "2017-08-08" @default.
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- W2739542464 date "2017-12-01" @default.
- W2739542464 modified "2023-10-16" @default.
- W2739542464 title "Hierarchical structured Sm 2 O 3 modified CuO nanoflowers as electrode materials for high performance supercapacitors" @default.
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- W2739542464 doi "https://doi.org/10.1016/j.apsusc.2017.07.236" @default.
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