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Improving electrocatalytic activity of fluorinated multi-walled carbon nanotubes modified with tetraaminophthalocyanines for lithium/thionyl chloride battery

Authors
  • Zhang, Ying
  • Wang, Tingli
  • Zhang, Ronglan
  • Yang, Weixing
  • Luo, Kai
  • Zhang, Weiping
  • Zhao, Jianshe
Type
Published Article
Journal
Ionics
Publisher
Springer Berlin Heidelberg
Publication Date
Mar 01, 2019
Volume
25
Issue
4
Pages
1459–1469
Identifiers
DOI: 10.1007/s11581-019-02911-y
Source
Springer Nature
Keywords
License
Yellow

Abstract

A series of metal 1, 8, 15, 22-tetraaminophthalocyanines [1, 8, 15, 22-TAPcM, M = Mn(II), Fe(II), Ni(II), Cu(II), Zn(II)] are synthesized and used to chemically modify fluorinated multi-walled carbon nanotubes (F-MWCNTs) with the formation of certain chemical bonds on the surface of carbon nanotubes, and the corresponding composites 1, 8, 15, 22-TAPcM/MWCNTs are obtained. The electrocatalytic activities of the samples are studied by adding them into lithium/thionyl chloride (Li/SOCl2) batteries. The results indicate that the composites 1, 8, 15, 22-TAPcM/MWCNTs can improve the discharge voltage and lengthen the discharge time of the batteries much more than 1, 8, 15, 22-TAPcM, and the order of the electrocatalytic activities of 1, 8, 15, 22-TAPcM/MWCNTs and 1, 8, 15, 22-TAPcM with different metal ions in center is both Mn(II) > Ni(II) > Zn(II) > Fe(II) > Cu(II). It is also found that the discharge time and maximal discharge voltage and capacity for the battery contains 1, 8, 15, 22-TAPcMn/MWCNTs can be improved by 68.19%, 9.41%, and 82.6%, respectively.

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