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• W3212973831 endingPage "103525" @default.
• W3212973831 startingPage "103525" @default.
• W3212973831 abstract "• A novel honeycomb like porous carbon has been obtained by a facile method. • The excellent specific surface area, high nitrogen and oxygen contents are obtained from gelatin-derived carbon materials. • The optimum carbon material (Gel/G-1.0) exhibit good electrochemical performances as well as outstanding energy density under high mass loading. Using gelatin as the carbon source and glutaraldehyde as the cross linking agent, a novel honeycomb like porous carbon has been successfully prepared through simple cross linking reaction and KOH activation at high temperature. Compact and uniform honeycomb morphology has been formed in Gel/G-1.0 (Gel represents gelatin, G represents glutaraldehyde, and 1.0 represents the amount of glutaraldehyde) which brings micropores and high specific surface area (SSA). Heteroatoms including O and N have been introduced into carbon material which contribute pseudo-capacitance. Higher degree of graphitization for Gel/G-1.0 has improved the conductivity of the carbon material which exhibits good electrochemical performances under high mass loading. When the active carbon material mass loading is about 10 mg, the specific capacitance ( C sp ) of Gel/G-1.0 is 392 F g −1 at current density of 1 A g −1 in 2 M H 2 SO 4 , with high retention of 64% at current density of 10 A g −1 . More importantly, the carbon material exhibits a high energy density of 6.39 W h kg −1 with the power density of 50.03 W kg −1 , even at the power density of 502.79 W kg −1 , the energy density remains 5.00 W h kg −1 . This simple synthesis strategy and outstanding electrochemical performances of carbon materials with high mass loading are great significance in the application of supercapacitors. A novel honeycomb like porous carbon has been prepared by cross linking reaction and KOH activation methods. When the activated carbon material mass loading is about 10 mg, the specific capacitance of Gel/G-1.0 is 392 F g −1 at current density of 1 A g −1 in 2 M H 2 SO 4 ." @default.
• W3212973831 created "2021-11-22" @default.
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• W3212973831 date "2022-01-01" @default.
• W3212973831 modified "2023-10-06" @default.
• W3212973831 title "Gelatin-derived honeycomb like porous carbon for high mass loading supercapacitors" @default.
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• W3212973831 doi "https://doi.org/10.1016/j.est.2021.103525" @default.
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