FeCl3膨胀石墨层间化合物制备及电导性能研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

P578.1+ 6; O44

基金项目:

湖北省教育厅优秀中青年项目(2003B001),湖北省自然科学基金项目(2004ABA090)


Synthesis and electrical conductivity of FeCl3 exfoliated graphite intercalation compounds
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    在N2保护下用熔盐法合成了FeCl_3膨胀石墨层间化合物(简称FeCl_3-EGICs)。研究表明,在FeCl3过量、360℃、12h的条件下可得到纯一阶产物;460℃、12h为纯二阶。293K时,一阶FeCl3_EGICs的电导率为7.513×106S·m-1,二阶为6.87×106S·m-1,分别是原料膨胀石墨的3.7倍和3.4倍。在293K至分解温度范围内,FeCl3_EGICs具有金属电导特性,其电阻与温度间呈线性关系,随温度升高电阻增大,其机理为声子散射。

    Abstract:

    The FeCl3 graphite intercalation compounds (FeCl3-GICs) have aroused special attention for their highly electrical conductivity and stability. In this paper, FeCl3-exfoliated graphite intercalation compounds (Abs. FeCl3-EGICs) have been synthesized under the protection of nitrogen gas with the melting salt method. The experimental results show that pure stage-I FeCl3-EGICs can be synthesized at 360℃ for 12 hours, and pure stage-II FeCls3-EGICsat 460℃ for 12 hours when FeCl3 is excessive. In addition, the electrical conductivity of FeCl3-EGICs was measured at different temperatures, the number of stage Ⅰ EGICs is 7.513×10 6S·m-1 at 297K which is 3.7 times larger than pristine exfoliated graphite, and stage Ⅱ is 6.87×10 6 S.m-1at the same temperature which is 3.4 times larger. The conductance of FeCl3-EGICs is similar to that of metals, and its electrical resistivity shows a linear relation with the temperature from 297K to decomposition temperature. The resistivityincreases with temperature, with the mechanism being phonon scattering.

    参考文献
    相似文献
    引证文献
引用本文

曹宏 马恩宝 王学华 宾晓蓓 李阳艳,2005,FeCl3膨胀石墨层间化合物制备及电导性能研究[J].岩石矿物学杂志,24(6):629~632. CAO Hong, MA En-bao, WANG Xue-hua, BIN Xiao-bei, LI Yang-yan,2005,Synthesis and electrical conductivity of FeCl3 exfoliated graphite intercalation compounds[J]. Acta Petrologica et Mineralogica,24(6):629~632.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2005-07-30
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期: