Thermoelectric properties of conducting polyaniline/graphite composites
Thermoelectric properties of conducting polyaniline/graphite composites
复制标题
导电聚苯胺/石墨复合材料的热电性能
DOI：
10.1016/j.matlet.2011.01.014
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发表时间：
2011-04-15
影响因子：
3
通讯作者：
Pan, Fred
中科院分区：
文献类型：
--
作者：
Wang, Lei;Wang, Dagang;Pan, Fred
通过机械球磨和冷压制备了HClO4掺杂的聚苯胺/石墨复合材料。研究了复合材料的热电性能随石墨浓度的变化。随着石墨含量的增加，热导率（K）略有增加，但电导率（o）和塞贝克系数（S）显着增加，这导致复合材料的品质因数明显提高。经计算，石墨浓度为50wt的复合材料在393K时的ZT为1.37×10(-3)，这比不含石墨的HClO4掺杂聚苯胺(1.13×10(-7))至少大10000倍。这项工作提出了一种提高导电聚合物热电性能的新方法。 (C) 2011 Elsevier B.V. 保留所有权利。
HClO4-doped polyaniline/graphite composites were prepared by mechanical ball milling and cold pressing. The thermoelectric properties for the composites were investigated as a function of graphite concentration. The thermal conductivity (K) increases slightly with increasing graphite content but the electric conductivity (o) as well as the Seebeck coefficient (S) increases remarkably, which leads to an obvious enhancement in the figure of merit for the composites. The ZT of the composite with graphite concentration of 50 wt was calculated to be 1.37 x 10(-3) at 393 K. which was at least 10000 times greater than that of the HClO4-doped polyaniline without graphite (1.13 x 10(-7)). This work suggests a new method to improve thermoelectric properties of conducting polymers. (C) 2011 Elsevier B.V. All rights reserved.