Optimized synthesis of N-doped multi-channel carbon derived from fiber-reinforced polyimide composites for supercapacitors

Yu, Juan; Ding, Chengcheng; Wang, Xiaodong; Huang, Pei

doi:10.1016/j.matlet.2023.134036

Cited by 2 publications

(1 citation statement)

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“…In this aspect, supercapacitors featuring high power density and long cycling life are one of the ideal electrochemical energy storage devices for such green and sustainable energy storage [7][8][9][10][11]. Hence, the exploration of high-performance electrode materials for supercapacitors has attracted great attention [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Microporous N- and O-Codoped Carbon Materials Derived from Benzoxazine for Supercapacitor Application

Liu

et al. 2023

Inorganics

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Heteroatom-doped porous carbon materials are highly desired for supercapacitors. Herein, we report the preparation of such material from polybenzoxazine (PBZ), a kind of phenolic resin. Four different N- and O-codoped microporous carbon materials were obtained by changing carbonization temperature (600, 700, 800, and 900 °C). Their structures were characterized by scanning electron microscopy (SEM), nitrogen isothermal absorption and desorption, X-ray diffraction (XRD), Raman spectroscopy, elemental analysis and X-ray photoelectron spectroscopy (XPS), and their electrochemical performances were evaluated by cyclovoltammetry (CV) and galvanostatic charge–discharge (GCD) test in a three-electrode system. It was found that the carbon material (C-700) prepared at the carbonization temperature of 700 °C possesses the largest specific surface area (SSA), total pore volume and average pore size among the family, and thus displays the highest specific capacitance with a value of 205 F g−1 at a current density of 0.25 A g−1 and good cycling stability. The work demonstrates that the N- and O-codoped microporous carbon materials with high electrochemical performance can be derived from benzoxazine polymers and are promising for supercapacitor application.

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