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- W4318022810 abstract "In this work, the effects of different Co3O4:KOH mass ratios on the microstructure, chemical state, and surface properties of Co3O4 nanoparticles were investigated and discussed. The different KOH contents in the activation process affecting the electrochemical properties of the samples were determined in a three-electrode configuration. The results showed that the sample with a Co3O4:KOH mass ratio of 1:0.5 ([email protected]) exhibited the highest specific capacitance of 204.0 F/g at a current density of 1 A/g. The excellent capacitance retention of 97.7% was observed after a 5000 cycle galvanostatic charge/discharge test. A symmetrical two-electrode system was set up, and the results showed that the [email protected] sample had a superior energy density of 3.5 Wh/kg and a power density of 276.0 W/kg at a current density of 1 A/g. The KOH activation method was effective and could be extended to other metal oxides to obtain better electrode materials for supercapacitors." @default.
- W4318022810 created "2023-01-26" @default.
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- W4318022810 date "2023-04-01" @default.
- W4318022810 modified "2023-09-27" @default.
- W4318022810 title "Effect of surface modification by KOH activation on the electrochemical performance of Co3O4 nanoparticles" @default.
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- W4318022810 doi "https://doi.org/10.1016/j.mseb.2023.116293" @default.
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