Triazine based polyimide framework derived N-doped porous carbons: a study of their capacitive behaviour in aqueous acidic electrolyte

Deka, Namrata; Patidar, Rajesh; Kasthuri, S.; Venkatramaiah, N.; Dutta, Gitish K.

doi:10.1039/c8qm00641e

Cited by 32 publications

(19 citation statements)

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“…Otherwise, the G mode will split into two distinct peaks because the 2-fold degeneracy of the TO and LO phonons is lifted by symmetry breaking, as found in carbon nanotubes 27 and the aromatic molecule decorated the graphene monolayer. 28 But one must have noticed that in the Raman spectra of modified graphene, the most significant change is the appearance of the D mode at B1350 cm À1 . The D mode is arising from the defectinvolved double resonant Raman process at the K point in the Brillouin zone.…”

Section: Resultsmentioning

confidence: 99%

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

Huang

Yin

2020

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

Huang

Yin

2020

Mater. Adv.

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“…5 shows Nitrogen adsorption–desorption isotherm of PPC, BHC and BPC. All three materials display type I isotherms,, typical of microporous structure. The surface areas calculated by using a multipoint BET model of PPC, BHC and BPC are 1054 m 2 /g, 1166 m 2 /g and 1572 m 2 /g, respectively.…”

Section: Resultsmentioning

confidence: 99%

3D Hierarchical structure Electrodes of MnO₂ Nanosheets Decorated on Needle‐like NiCo₂O₄ Nanocones on Ni Foam as a cathode material for Asymmetric Supercapacitors

et al. 2019

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In this work, three dimensional (3D) hierarchical structure electrode of MnO2 nanosheets decorated on needle‐like NiCo2O4 nanocones hybrid arrays on Ni foam is designed by a two‐step hydrothermal process. In this special structure, 3D hierarchical NiCo2O4/MnO2 core/shell composites have high specific surface area and large pore structure, which makes it easier to reach the active site, and shorten the ion transport path. Used as electrode for supercapacitors, the composites can develop their respective strengths, and the synergies between different components can also improve capacitance and speed capacity. The electrochemical results exhibit that the NiCo2O4/MnO2 core/shell electrodes display a large capacitance of 816 F⋅g−1 at the current density of 5 mA⋅cm−2, and show an excellent cycling stability (81% retention after 5000 cycles). Four Asymmetric supercapacitors (NiCo2O4/MnO2//BPC (banana peel), NiCo2O4/MnO2//BHC (buckwheat husk), NiCo2O4/MnO2//PPC (pomelo peel), and NiCo2O4/MnO2//AC (activated carbon)) using the NiCo2O4/MnO2 core/shell as a positive electrode and biochar as a negative electrode are assembled. The results indicate that all the asymmetric supercapacitors deliver a high operation voltage of 1.6 V, and NiCo2O4/MnO2//BPC exhibits excellent specific capacitance (85.4 F⋅g−1 at the current density of 5 mA⋅cm−2), high energy density (30.4 Wh⋅kg−1 at the power density of 133.5 W⋅kg−1) and remarkable cycling stability (only decrease by 12% after 5000 cycles).

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“…Nevertheless, to achieve the best performance, further structure establishment is needed to improve the limited ion conductivity of carbon . Especially, carbon used in electrochemical capacitor generally storages charges in electric‐double‐layer form without ion transportation in the bulk . On the other hand, constructing porous structure is an effective strategy to achieve good electrochemical performance, because porous structure has large surface area for increased reactive sites and provides plenty of inner space for volume change and fast electrolyte transportation .…”

Section: Introductionmentioning

confidence: 99%

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

Zhu

Zhang

et al. 2020

ChemistrySelect

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In present work, mulberry-like core-shell structured C@MnO 2 was synthesized as electrodes for Li-ion batteries and pseudocapacitors. Benefiting from the nanoporous shell and conductive carbon core that improve the ion transference and conductivity, the C@MnO 2 delivers excellent electrochemical performance in terms of a stable lithium storage capacity of 553 mAh g À 1 after 250 cycles under 0.5 A g À 1 and a high capacitance up to 274.44F g À 1 under 1 A g À 1 in 6 M KOH and the capacity retention is 90.2% after 5000 cycles. Such electrochemical properties combined with the facile synthesis route make C@MnO 2 promising electrode materials for energy storage.[a] Dr.

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Triazine based polyimide framework derived N-doped porous carbons: a study of their capacitive behaviour in aqueous acidic electrolyte

Abstract: Nitrogen-doped porous carbons have been synthesized from triazine based polyimide frameworks using ZnCl2 as an activating agent for electrochemical energy storage.

Cited by 32 publications

References 74 publications

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

3D Hierarchical structure Electrodes of MnO₂ Nanosheets Decorated on Needle‐like NiCo₂O₄ Nanocones on Ni Foam as a cathode material for Asymmetric Supercapacitors

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

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Triazine based polyimide framework derived N-doped porous carbons: a study of their capacitive behaviour in aqueous acidic electrolyte

Abstract: Nitrogen-doped porous carbons have been synthesized from triazine based polyimide frameworks using ZnCl2 as an activating agent for electrochemical energy storage.

Cited by 32 publications

References 74 publications

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

3D Hierarchical structure Electrodes of MnO2 Nanosheets Decorated on Needle‐like NiCo2O4 Nanocones on Ni Foam as a cathode material for Asymmetric Supercapacitors

Mulberry‐Like Core‐Shell Structured C@MnO2 as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors

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Product

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3D Hierarchical structure Electrodes of MnO₂ Nanosheets Decorated on Needle‐like NiCo₂O₄ Nanocones on Ni Foam as a cathode material for Asymmetric Supercapacitors

Mulberry‐Like Core‐Shell Structured C@MnO₂ as Electrode Material for Li–Ion Batteries and Pseudo‐Capacitors