Preparation and Electrochemical Performance of NiCo<sub>2</sub>O<sub>4</sub> Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes

Jian-hua Zhu; Qian Zhang; Rui-yun Zhang; Li-fang Liu

doi:10.11777/j.issn1000-3304.2022.22116

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Preparation and Electrochemical Performance of NiCo₂O₄ Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes

Research Article | 更新时间：2024-10-08

- Preparation and Electrochemical Performance of NiCo₂O₄ Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes
- ACTA POLYMERICA SINICA Vol. 53, Issue 12, Pages: 1484-1492(2022)
- 作者机构：
  
  1.东华大学，纺织学院，上海 201620
  2.东华大学，材料科学与工程学院，上海 201620
- 作者简介：
  
  Rui-yun Zhang, E-mail: ryzhang@dhu.edu.cn
  Li-fang Liu, E-mail: lifangliu@dhu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2022.22116
  CLC：
- Published：20 December 2022，
  
  Published Online：07 September 2022，
  
  Received：09 April 2022，
  
  Accepted：07 May 2022
- 稿件说明：
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朱建华,张倩,张瑞云等.NiCo₂O₄修饰N掺杂交联碳纳米纤维电极的制备及其电化学性能研究[J].高分子学报,2022,53(12):1484-1492.

Zhu Jian-hua,Zhang Qian,Zhang Rui-yun,et al.Preparation and Electrochemical Performance of NiCo₂O₄ Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes[J].ACTA POLYMERICA SINICA,2022,53(12):1484-1492.
朱建华,张倩,张瑞云等.NiCo₂O₄修饰N掺杂交联碳纳米纤维电极的制备及其电化学性能研究[J].高分子学报,2022,53(12):1484-1492. DOI： 10.11777/j.issn1000-3304.2022.22116.

Zhu Jian-hua,Zhang Qian,Zhang Rui-yun,et al.Preparation and Electrochemical Performance of NiCo₂O₄ Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes[J].ACTA POLYMERICA SINICA,2022,53(12):1484-1492. DOI： 10.11777/j.issn1000-3304.2022.22116.

摘要

为有效改善碳纳米纤维导电性及柔性，以聚乙烯吡咯烷酮(PVP)为芯溶液，聚丙烯腈(PAN)和PVP为皮溶液，首先通过同轴静电纺丝技术制备偏心皮芯结构纳米纤维，然后在高温碳化过程中热塑性高聚物PVP发生熔融，在纤维间形成交联点，制得N掺杂的交联碳纳米纤维. 进一步，通过水热合成反应在碳纳米纤维表面原位生长NiCo

纳米针获得NiCo

修饰的N掺杂交联碳纳米纤维电极. 基于电极材料的结构优势以及碳纳米纤维与NiCo

纳米针的协同作用，所制备的NiCo

修饰N掺杂交联碳纳米纤维电极表现出优异的电化学行为，在0.5 A·g

-1

电流密度下，质量比电容高达1186.4 F·g

-1

(197.5 mA·h·g

-1

)，10000次充放电循环后电容保持率达74.5%，且将电极材料组装成非对称超级电容器可成功为电子器件进行供电. 本文工作为柔性电极的开发提供了一种新的探究思路.

Abstract

In order to effectively improve the conductivity and flexibility of carbon nanofibers

eccentric core-shell nanofibers were prepared

via

coaxial electrospinning technique with polyvinylpyrrolidone (PVP) as the core solution and polyacrylonitrile (PAN) and PVP as the shell solution. And then

N-doped cross-linked carbon nanofibers were prepared due to the melting of the thermoplastic polymer PVP during the high-temperature carbonization process

resulting in the formation of cross-linking points between adjacent nanofibers. NiCo

decorated N-doped cross-linked carbon nanofiber electrodes were obtained by growing NiCo

nanoneedles on the surface of carbon nanofibers

via

hydrothermal synthesis reaction. Due to the structural advantages of electrode materials and the synergistic effect of carbon nanofibers and NiCo

nanoneedles

the prepared NiCo

modified N-doped cross-linked carbon nanofiber electrode exhibits excellent electrochemical behavior (specific capacitance is 1186.4 F·g

-1

(197.5 mA·h·g

-1

) at the current density of 0.5 A·g

-1

capacitance retention of 74.5% after 1×10

charge-discharge cycles). The asymmetric supercapacitors assembled by prepared electrode materials powered electronics successfully

which provides a new research idea for the development of flexible electrodes.

关键词

碳纳米纤维双金属氧化物NiCo2O4柔性电极超级电容器

Keywords

Carbon nanofiberBimetallic oxideNiCo2O4Flexible electrodeSupercapacitor

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Preparation and Electrochemical Performance of NiCo2O4 Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes

DOI：10.11777/j.issn1000-3304.2022.22116

摘要

Abstract

关键词

Keywords

references

Preparation and Electrochemical Performance of NiCo₂O₄ Decorated N-Doped Cross-linked Carbon Nanofiber Electrodes