Hierarchical porous carbon microtubes derived from corn silks for supercapacitors electrode materials

Zhou, Jingjie; Yuan, Shuxia; Lü, Chunxiang; Song, Yan

doi:10.1016/j.jelechem.2020.114704

Cited by 32 publications

(13 citation statements)

References 62 publications

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“…5a). 47 Meanwhile, with an increase in NaHCO 3 content, the intensity of the (002) peak weakens, suggesting a low degree of graphitic structure. 48…”

Section: Resultsmentioning

confidence: 99%

Hierarchical hollow-tubular porous carbon microtubes prepared via a mild method for supercapacitor electrode materials with high volumetric capacitance

et al. 2022

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“…5a). 47 Meanwhile, with an increase in NaHCO 3 content, the intensity of the (002) peak weakens, suggesting a low degree of graphitic structure. 48…”

Section: Resultsmentioning

confidence: 99%

Hierarchical hollow-tubular porous carbon microtubes prepared via a mild method for supercapacitor electrode materials with high volumetric capacitance

et al. 2022

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“…This was attributed to the decreasing N content in BDPC-x, which is consistent with EA analysis. The slope of the straight line at the intermediate frequency corresponds to the Warburg diffusion resistance, which represents the diffusion/transport rate of electrolyte ions through the pores in the carbon electrode (He et al 2019;Zhou et al 2020). It is clear that all the intermediate frequency lines were closer to the vertical direction, indicating low diffusion resistance and good electrochemical capacitive properties.…”

Section: Fig 6 Eis Curves Of Bdpc Electrodesmentioning

confidence: 99%

Template synthesis of nitrogen self-doped hierarchical porous carbon with supermicropores and mesopores for electrical double-layer capacitors

Yuan

Zhang

et al. 2022

BioRes

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Nitrogen self-doped hierarchical porous carbon for electrical double-layer capacitors was synthesized by direct carbonization of bean dregs-based tar with potassium acetate as the template agent. The pore structure parameters and chemical element composition were adjusted by varying the heating rate during the carbonization process. The electrochemical properties of the electrode materials were evaluated in a three electrode system with 6 M KOH as the electrolyte. The resultant bean dregs-based porous carbons (BDPCs) exhibited high specific surface area, unique hierarchical architecture (consisting of supermicro- and mesopores), and medium nitrogen content (0.66 to 0.78%). The BDPC-10 sample had the highest specific surface area of 1610 m2/g and reasonable pore size distribution, and consequently exhibited an excellent specific capacitance of 363.7 F/g at the current density of 1 A/g. Nevertheless, the capacitance was reduced to 280.5 F/g at 3 A/g, giving a capacitance retention ratio of 77.1%. This study suggests a facile and environmentally friendly template synthesis process for supercapacitor electrode materials preparation, but it also faces challenges to increase the rate capability.

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“…The electrode material in two-electrode system exhibited impressive capacitance retention of 81.6% over 10 000 cycles at 4 A g À1 . 214 In comparison to single atom doping, dual doping (e.g., O, N, P, etc.) can also provide a signicant impact on the electrochemical properties of porous carbons.…”

Section: Energy Storage: Supercapacitorsmentioning

confidence: 99%

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

et al. 2022

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Hierarchical porous carbon microtubes derived from corn silks for supercapacitors electrode materials

Cited by 32 publications

References 62 publications

Hierarchical hollow-tubular porous carbon microtubes prepared via a mild method for supercapacitor electrode materials with high volumetric capacitance

Hierarchical hollow-tubular porous carbon microtubes prepared via a mild method for supercapacitor electrode materials with high volumetric capacitance

Template synthesis of nitrogen self-doped hierarchical porous carbon with supermicropores and mesopores for electrical double-layer capacitors

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

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