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Resistivity and magnetic susceptibility of nanotubular polyaniline doped with protonic acids

He Chao-Hui Geng Bin Yang Hai-Liang Chen Xiao-Hua Wang Yan-Ping Li Guo-Zheng Zhang Zhi-Ming Wan Mei-Xiang Long Yun-Ze Chen Zhao-Jia Zheng Ping Wang Nan-Lin

Resistivity and magnetic susceptibility of nanotubular polyaniline doped with protonic acids

He Chao-Hui, Geng Bin, Yang Hai-Liang, Chen Xiao-Hua, Wang Yan-Ping, Li Guo-Zheng, Zhang Zhi-Ming, Wan Mei-Xiang, Long Yun-Ze, Chen Zhao-Jia, Zheng Ping, Wang Nan-Lin
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  • Received Date:  22 March 2002
  • Accepted Date:  22 April 2002
  • Published Online:  03 April 2005

Resistivity and magnetic susceptibility of nanotubular polyaniline doped with protonic acids

  • 1. (1)西北核技术研究所,西安69信箱13分箱 710024; (2)中国科学院化学研究所分子科学中心,有机固体实验室,北京 100080; (3)中国科学院物理研究所极端条件物理实验室,北京 100080

Abstract: Nanotubular polyaniline (PANI) doped with protonic acids have been synthesized by a “template-free”method. The temperature dependence of resistivity (ρ) and magnetic susceptibility has been studied. The influences of different protonic acids (counterions), doping concentration and the synthesizing concentration of dopant on resistivity also have been investigated. It is obvious from experimental results that ln ρ is linear against T-1/2. With increasing acidity of protonic acids ,doping concentration and the synthesizing concentration of dopant, the resistivity of the samples decreases, and the magnetic susceptibility can be written as a sum of a temperature-independent Pauli spin susceptibility term and a Curie-law term.

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