高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (12): 2306-2312.doi: 10.7503/cjcu20170110

• 物理化学 • 上一篇    下一篇

自支撑三维功能化石墨烯/聚苯胺电极材料的制备及超级电容性能

李学航1, 俞慧涛1, 王伟仁1, 布林朝克1, 辛国祥1, 张邦文1,2()   

  1. 1. 内蒙古科技大学材料与冶金学院
    2. 分析测试中心, 包头 014010
  • 收稿日期:2017-02-25 出版日期:2017-12-10 发布日期:2017-11-23
  • 作者简介:联系人简介: 张邦文, 男, 博士, 教授, 主要从事功能材料和储能器件研究. E-mail: bangwenz@126.com
  • 基金资助:
    国家自然科学基金(批准号: 51164026 )和内蒙古科技大学创新基金(批准号: 2016QDL-B01)资助

Preparation and Performance in Supercapacitor of Three-dimensional Functionalized Graphene/polyaniline Freestanding Electrode Materials

LI Xuehang1, YU Huitao1, WANG Weiren1, BULIN Chaoke1, XIN Guoxiang1, ZHANG Bangwen1,2,*()   

  1. 1.School of Materials and Metallurgy, Baotou 014010, China
    2. Instrumental Analysis Center,Inner Mongolia University of Science and Technology, Baotou 014010, China
  • Received:2017-02-25 Online:2017-12-10 Published:2017-11-23
  • Contact: ZHANG Bangwen E-mail:bangwenz@126.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.51164026) and the Innovation Fund of Inner Mongolia University of Science and Technology, China(No.2016QDL-B01)

摘要:

采用水热法制备了三维石墨烯(3D-G), 并以十八胺(ODA)为接枝剂对部分还原的氧化石墨烯进行氨基化处理, 再利用原位聚合法在氨基化石墨烯表面生长聚苯胺, 制备了十八胺功能化石墨烯/聚苯胺(G-ODA/PANI). 对材料进行了结构表征、 电化学性能分析和材料结构的比电容贡献分析. 结果显示, 电极材料的电容贡献大部分体现为材料的表面电容, G-ODA/PANI电极片在1 A/g电流密度时的比电容最高可达1080 F/g, 是未功能化石墨烯/聚苯胺电极材料(G/PANI)的2.57倍, 且循环稳定性也有很大的提高, 循环10000周后的比容量保持率为90.8%, 比G/PANI高9.6%.

关键词: 功能化石墨烯, 聚苯胺, 氨基化, 原位聚合, 超级电容器

Abstract:

Three dimensional graphene(3D-G) was prepared by hydrothermal method, in which graphene layer increased the electron transfer within the channels. Octadecylamine(ODA) functionalized graphene/polyaniline(G-ODA/PANI) was prepared by the modification of reduced graphene materials with ODA and in situ polymerization of aniline on the surface og G-ODA. Structure, electrochemical properties and the specific capacitance contribution of the materials were analyzed. The results showed that the contribution of capacitor electrode material was originated from the pseudocapacitive properties of polyaniline. The specific capacitance of G-ODA/PANI electrode reached 1080 F/g at current density of 1 A/g, 2.57 times as high as that of graphene/polyaniline(G/PANI) electrode material. It also had a great increase in cycle stability, and the capacity retention rate was 90.8% after 10000 cycle times, increased by 9.6% compared with G/PANI.

Key words: Functional graphene, Polyaniline, Amination, In situ polymerization, Supercapacitor

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