Preparation and Electrochemical Properties of Graphene-Carbon Nanotubes Macroscopic Hybrid Fibers

Bing-na ZHENG; Chao GAO

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Preparation and Electrochemical Properties of Graphene-Carbon Nanotubes Macroscopic Hybrid Fibers

更新时间：2022-09-18

- Preparation and Electrochemical Properties of Graphene-Carbon Nanotubes Macroscopic Hybrid Fibers
- Polymer Bulletin Vol. 26, Issue 10, Pages: 171-178(2013)
- 作者机构：
  
  浙江大学高分子科学与工程学系，高分子合成与功能构造教育部重点实验室，杭州　310027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013-10，
  
  Received：30 July 2013，
  
  Revised：06 August 2013，
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Bing-na ZHENG, Chao GAO. Preparation and Electrochemical Properties of Graphene-Carbon Nanotubes Macroscopic Hybrid Fibers. [J]. Polymer Bulletin 26(10):171-178(2013)
DOI：

Bing-na ZHENG, Chao GAO. Preparation and Electrochemical Properties of Graphene-Carbon Nanotubes Macroscopic Hybrid Fibers. [J]. Polymer Bulletin 26(10):171-178(2013) DOI：

摘要

通过湿法纺丝方法制备了大片氧化石墨烯和多壁碳纳米管的全碳复合纤维。石墨烯和碳纳米管的协同效应使纤维具有良好的电化学性能

所制备纤维超级电容器的循环伏安曲线近似矩形

表现出碳材料典型的双电层电容性质;在电流密度为0.1mA/cm

的恒流充放电测试中

纤维超级电容器面积比电容可达到32.6mF/cm

。另外

复合纤维表现了高导电率和较高力学强度的综合性能

化学还原后电导率可达500~800S/m

单丝的拉伸强度和杨氏模量可达377MPa和4.2GPa。因此

石墨烯-碳纳米管复合纤维作为柔性纤维电容器有着广泛的应用前景。

Abstract

We used wet-spinning method to prepare all-carbon macroscopic hybrid fibers composed of large size graphene oxide (LGO) and carboxylic multiwall carbon nanotubes (MWNT-COOH). The fibers have excellent eletrochemical properties due to the synergistic effect of LGO and MWNT-COOH. The parallelogram shapes of cyclic voltammogram (CV) curves are typical behavior of carbon-based electrochemical double-layer capacitors; Area specific capacity reaches to 32.6mF/cm

at 0.1mA/cm

in galvanostatic charge and discharge test. Moreover

the hybrid fibers integrate high conductivity and fairly high mechanical properties. The conductivity reaches to 500-800S/m after chemical reduction. The tensile strenghth and Young’s modulus are 377MPa and 4.2GPa

respectively. Hence

graphene-carbon nanotubes hybrid fibers are promising in flexible energy storage devices.

关键词

石墨烯碳纳米管复合纤维柔性超级电容器

Keywords

GrapheneCarbon nanotubeHybrid fiberFlexibleSupercapacitor

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