期刊
SYNTHETIC METALS
卷 160, 期 11-12, 页码 1153-1158出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2010.03.001
关键词
Polyaniline; Hydrochloric acid-doping; Metallic character; Thermoelectric properties
资金
- National Basic Research Program of China [2007CB607501]
- National Science Foundation of China [50731006]
- 111 Project of China [B07040]
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.
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