纺织学报 ›› 2020, Vol. 41 ›› Issue (01): 96-101.doi: 10.13475/j.fzxb.20190105006

• 染整与化学品 • 上一篇    下一篇

二氧化锰/石墨烯/棉织物复合电极的制备及其电化学性能

李育洲, 张雨凡, 周青青, 陈国强, 邢铁玲()   

  1. 苏州大学 纺织与服装工程学院, 江苏 苏州 215021
  • 收稿日期:2019-01-23 修回日期:2019-06-05 出版日期:2020-01-15 发布日期:2020-01-14
  • 通讯作者: 邢铁玲
  • 作者简介:李育洲(1993—),男,硕士。主要研究方向为可穿戴功能纺织品。
  • 基金资助:
    江苏省六大人才高峰项目(JNHB-066);江苏高校优势学科建设工程资助项目(苏政办发[2018]87号)

Preparation and electrochemical properties of MnO2/graphene/cotton fabric composite electrode

LI Yuzhou, ZHANG Yufan, ZHOU Qingqing, CHEN Guoqiang, XING Tieling()   

  1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
  • Received:2019-01-23 Revised:2019-06-05 Online:2020-01-15 Published:2020-01-14
  • Contact: XING Tieling

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摘要：

为研究并增强柔性织物电极的电化学性能,采用改进Hummers法制备得到高浓度氧化石墨烯水溶胶,并通过干涂层法将氧化石墨烯涂覆于棉织物表面,经化学-微波两步还原法还原氧化石墨烯,制备了石墨烯/棉织物。进一步采用电化学沉积法将二氧化锰沉积在石墨烯/棉织物上,得到二氧化锰/石墨烯/棉织物复合电极材料。借助扫描电子显微镜、X射线衍射仪和红外光谱仪对复合电极材料的形貌和结构进行表征。研究结果表明:复合电极材料在0.25 A/g的电流密度下比电容达到490 F/g,1 000次电容放电后电容保持在95.5%,能量密度达到17.01 W·h /kg。

关键词: 石墨烯, 二氧化锰, 棉织物, 复合材料, 电极, 电化学性能

Abstract:

In order to enhance the electrochemical properties of flexible fabric electrodes, high concentration graphene oxide hydrosol was prepared by improved Hummers method, the graphene oxide was then coated onto cotton fabric through an environmentally friendly ″dry-coating″ method, and graphene/cotton fabric was prepared by subsequent ″two-step reduction″ method of chemical-microwave reduction. Then the MnO2/graphene/cotton fabric composite electrode materials were prepared through electrochemical deposition of MnO2 on graphene/cotton fabric material. The morphology and structure of composite electrode materials were characterized by scanning electron microscopy, X-ray diffraction, and infrared spectrum. The results show that the specific capacitance of composite electrode material reaches 490 F/g at current density of 0.25 A/g. After 1 000 capacitance discharges, the capacitance remains at 95.5% and the energy density reaches 17.01 W·h/kg.

Key words: graphene, MnO2, cotton fabric, composite material, electrode, electrochemical property

中图分类号: 

  • TS190.2

图1

不同织物放大不同倍数的SEM照片"

图2

石墨烯/棉织物和MnO2/石墨烯/棉织物XRD谱图"

图3

石墨烯/棉织物和MnO2/石墨烯/棉织物红外光谱图"

图4

MnO2/石墨烯/棉织物复合电极材料的电化学性能"

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