Synthesis and thermoelectric properties of hydrochloric acid-doped polyaniline

被引:206
作者
Li, Junjie [1 ]
Tang, Xinfeng [1 ]
Li, Han [1 ]
Yan, Yonggao [1 ]
Zhang, Qingjie [1 ]
机构
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China
基金
美国国家科学基金会;
关键词
Polyaniline; Hydrochloric acid-doping; Metallic character; Thermoelectric properties; CONDUCTING POLYMERS; FILMS; POLYMERIZATION; POLYACETYLENE; SPECTROSCOPY; POLYPYRROLE; RESISTIVITY; DERIVATIVES;
D O I
10.1016/j.synthmet.2010.03.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of hydrochloric acid-doped polyaniline (PANI) were prepared by chemical oxidative polymerization. And the effects of HCl-cloping concentration on the thermoelectric properties in the temperature range of 303-423 K were discussed. The results show that an increase in HCl-doping concentration will lead to a trend of first increase and then decrease in both the electrical conductivity and thermoelectric figure-of-merit ZT, accompanied by the opposite trend of the Seebeck coefficient. The maximum ZT can reach 2.67 x 10(-4) at 423 K when HCl-doping concentration is 1.0 M. Moreover, the temperature dependence of the electrical conductivity shows a transition from non-metallic to metallic sign with doping level increasing, while the Seebeck coefficient of all the samples has a metallic character. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1153 / 1158
页数:6
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