PVA对氧化石墨烯/聚苯胺微观形貌及电化学性能的影响

PVA对氧化石墨烯/聚苯胺微观形貌及电化学性能的影响

论文摘要

采用原位聚合法制备了不同聚乙烯醇(PVA)表面活性剂添加量的聚苯胺(PANI)以及氧化石墨烯/聚苯胺(GO/PANI)复合材料。借助扫描电镜、X射线衍射、傅立叶变换红外光谱分析等表征手段对材料的物相组成、微观结构和形貌进行了分析。将材料压制电极并组装成扣式电池,利用循环伏安曲线和电化学阻抗谱对材料进行电化学性能检测。探讨了表面活性剂PVA的添加量对PANI以及GO/PANI的微观结构、形貌、电导率及电化学性能的影响。结果表明,当PVA与苯胺(AN)的摩尔比为0.000075时,PVA的引入明显降低了PANI及GO/PANI复合材料的团聚,PVA75/PANI的电导率比纯PANI的电导率提高了2倍,GO/PVA75/PANI复合材料的电导率比未加PVA的GO/PANI复合材料提高了5倍。当PVA与AN的摩尔比为0.000075时,PVA75/PANI和GO/PVA75/PANI复合材料的比电容分别达到986和1 223F/g。

论文目录

  • 0 引言
  • 1 实验
  •   1.1 实验材料
  •   1.2 实验方法
  •     1.2.1 PVA/PANI的制备
  •     1.2.2 PVA/GO/PANI复合材料的制备
  •     1.2.3 电导率样品制备
  •     1.2.4 扣式电池电极制作及组装
  •   1.3 样品表征
  • 2 结果与讨论
  •   2.1 PVA/PANI的微观形貌和性能
  •     2.1.1 微观形貌
  •     2.1.2 电导率
  •     2.1.3 电化学分析
  •   2.2 PVA/GO/PANI的微观结构、形貌与性能
  •     2.2.1 微观结构与形貌
  •     2.2.2 电导率分析
  •     2.2.3 电化学分析
  •     2.2.4 交流阻抗测试分析
  • 3 结论
  • 文章来源

    类型: 期刊论文

    作者: 侯朝霞,史鹏

    关键词: 氧化石墨烯,聚苯胺,复合材料,表面活性剂,电化学

    来源: 功能材料 2019年02期

    年度: 2019

    分类: 工程科技Ⅰ辑

    专业: 材料科学

    单位: 沈阳大学机械工程学院辽宁省新型功能材料与化学工艺重点实验室

    基金: 国家自然科学基金资助项目(51472166)

    分类号: TB332

    页码: 2150-2155

    总页数: 6

    文件大小: 1582K

    下载量: 251

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    PVA对氧化石墨烯/聚苯胺微观形貌及电化学性能的影响
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