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- W2095147084 abstract "Nitrogen-doped porous carbon derived from polyaspartic acid is utilized as activated carbon (AC) electrode for supercapacitor. The BET surface area and pore volume of the AC as high as 1071 m2 g−1 and 0.61 cm3 g−1. The AC electrode in 1 M H2SO4 electrolyte delivers high specific capacitance of 177 F g−1 at a high current density of 15 A g−1. Surprisingly, by introducing redox-mediated 0.6 g Na2MoO4 into 40 ml 1 M H2SO4 as a mixture electrolyte, the specific capacitance of the supercapacitor improved 841 F g−1, about 375.1% of specific capacitance in 1 M H2SO4 electrolyte. The high energy density 378.5 Wh kg−1 is also obtained. Furthermore, the AC electrode in the redox active Na2MoO4 electrolyte shows the excellent capacitance retention of 88.2% for over 1000 cycles. These improved performance are owed to the redox reaction between Mo(VI)/Mo(V) and Mo(VI)/Mo(IV) redox couples in the mixed H2SO4 and Na2MoO4 electrolyte at the electrode|electrolyte interface, and the concentration of the Na2MoO4 can also influence the electrochemical performance of the supercapacitor. Based on the overall performance, it is believed that the combination of polyaspartic acid derived nitrogen-doped porous carbon and redox active Na2MoO4 electrolyte is more attractive in the near future for high performance energy-storage devices." @default.
- W2095147084 created "2016-06-24" @default.
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- W2095147084 date "2015-03-01" @default.
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- W2095147084 title "A simple and high-performance supercapacitor based on nitrogen-doped porous carbon in redox-mediated sodium molybdate electrolyte" @default.
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- W2095147084 doi "https://doi.org/10.1016/j.electacta.2015.01.185" @default.
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