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- W347811181 abstract "Abstract Coal tar pitches (CTP) are used as precursor of electrode material because of their low cost and high carbon yield. In this study, CTP-based activated carbon materials (CACs) with high capacitance for supercapacitors were prepared by doping elemental N with co-carbonization of CTP and melamine. The electrochemical performance and textural characterization of CACs were investigated by constructing a single electrode capacitor in a 6 M KOH electrolyte, N 2 adsorption, scanning electron microscopy, and XPS. Results show that CACs with mass proportion of melamine and CTP being 1:5 possess a surface area of 2573 m 2 g −1 , with mesopore volume accounting for 56% of the total volume. After co-carbonization, N content on the surface of the CACs increased by 134% compared to that of undoped activated carbons. Their capacitance reached up to 228 F g −1 at a current density of 1 A g −1 . The high electrochemical performance of the CACs is attributed to its additional pseudo-capacitance and high surface area. The specific capacitance still possessed 94.2% retention after 1000 cycles, indicating good cycle stability." @default.
- W347811181 created "2016-06-24" @default.
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- W347811181 date "2015-10-01" @default.
- W347811181 modified "2023-09-23" @default.
- W347811181 title "Preparation of nitrogen-doped pitch-based carbon materials for supercapacitors" @default.
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- W347811181 doi "https://doi.org/10.1016/j.matlet.2015.04.127" @default.
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