Preparation of nitrogen-doped carbon aerogel under hypersaline condition and its application for supercapacitors

ZHANG Xuan; YANG Jiaxing; JIN Qiuyang; TONG Mingxing; ZHOU Junxi; GAO Jing; LI Guohua

doi:10.11949/0438-1157.20190106

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Preparation of nitrogen-doped carbon aerogel under hypersaline condition and its application for supercapacitors

Material science and engineering\, nanotechnology | 更新时间：2026-07-24

- Preparation of nitrogen-doped carbon aerogel under hypersaline condition and its application for supercapacitors
- CIESC Journal Vol. 70, Issue 7, Pages: 2748-2757(2019)
- 作者机构：
  
  浙江工业大学化学工程学院，浙江杭州 310014
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190106
  CLC： TB 32
- Received：30 January 2019，
  
  Revised：2019-04-19，
  
  Online First：24 July 2026，
  
  Published：05 July 2019
- 稿件说明：
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张璇, 杨佳兴, 金秋阳, 佟明兴, 周俊熹, 高静, 李国华. 超盐环境下含氮碳气凝胶的制备及其在超级电容器中的应用[J]. 化工学报, 2019, 70(7): 2748-2757

ZHANG Xuan, YANG Jiaxing, JIN Qiuyang, TONG Mingxing, ZHOU Junxi, GAO Jing, LI Guohua. Preparation of nitrogen-doped carbon aerogel under hypersaline condition and its application for supercapacitors[J]. CIESC Journal, 2019, 70(7): 2748-2757
张璇, 杨佳兴, 金秋阳, 佟明兴, 周俊熹, 高静, 李国华. 超盐环境下含氮碳气凝胶的制备及其在超级电容器中的应用[J]. 化工学报, 2019, 70(7): 2748-2757 DOI： 10.11949/0438-1157.20190106.

ZHANG Xuan, YANG Jiaxing, JIN Qiuyang, TONG Mingxing, ZHOU Junxi, GAO Jing, LI Guohua. Preparation of nitrogen-doped carbon aerogel under hypersaline condition and its application for supercapacitors[J]. CIESC Journal, 2019, 70(7): 2748-2757 DOI： 10.11949/0438-1157.20190106.

摘要

多孔碳材料因其优异的导电性和稳定性，以及成本低廉等优点而成为当今的研究热点之一。以苯酚、甲醛和三聚氰胺为原料，利用高浓度氯化锌来提供超盐环境，经溶剂热反应后，在氮气中800℃下热解制得了含氮碳气凝胶(NCA)。扫描电子显微镜、拉曼光谱、X射线光电子能谱和氮气吸附等表征结果表明，该含氮碳气凝胶具有分级多孔蜂窝状结构，其比表面积高达729.6 m²/g。采用三电极测试体系测试了含氮碳气凝胶的电化学性能，结果表明，在三电极体系中，以0.5 mol/L H

作为电解液，含氮碳气凝胶在电流密度为1 A/g时比电容达到350.7 F/g；在电流密度为20 A/g时，经过10000次充放电后，含氮碳气凝胶的电容保持率仍高达97.8%。在双电极体系中，含氮碳气凝胶在800 W/kg的功率密度下，能量密度可达26.8 (W·h)/kg。上述结果表明，该含氮碳气凝胶是一种非常理想的超级电容器电极材料。

Abstract

Porous carbon materials have become one research hotspot due

to their excellent electrical conductivity

superior stability and low cost. Using phenol

formaldehyde and melamine as raw materials

a high concentration of zinc chloride was used to provide a super-salt environment. After solvothermal reaction

a nitrogen-containing carbon aerogel(NCA) was obtained by pyrolysis at 800℃ in nitrogen. Scanning electron microscope (SEM)

Raman and Brunauer-Emmett-Teller (BET) results demonstrate that the NCA sample has hierarchically honeycomb-like structure and its specific surface area reaches 729.6 m²/g. The as-prepared NCA

when tested in three-electrode system as supercapacitor electrode

exhibits a high specific capacitance of 350.7 F/g at 1 A/g and outstanding cycling stability with 97.8 % of the initial capacitance retained after 10000 cycles at 20 A/g in 0.5 mol/L H

. Moreover

symmetric supercapacitor based on the NCA electrodes could deliver an impressively high energy density of 26.8 (W·h)/kg at a power density of 800 W/kg. Therefore

NCA is one promising material that can be used in supercapacitors.

关键词

Keywords

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