文献类型：期刊文献

英文题名：Thermoelectric Enhancement in Polyaniline Composites with Polypyrrole-Functionalized Multiwall Carbon Nanotubes

作者：Liu, Jie[1];Yu, Hui-Qun[1]

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2014

卷号：43

期号：4

起止页码：1181

外文期刊名：JOURNAL OF ELECTRONIC MATERIALS

收录：;EI(收录号：20141717617287);WOS:【SCI-EXPANDED(收录号:WOS:000334182700051)】；

语种：英文

外文关键词：Carbon nanotubes; conductive polymer; thermoelectric material; power factor

摘要：This work suggests a facile method to improve the thermoelectric properties of polyaniline (PANi) composites. Carbon multiwall nanotubes (MWNTs) were noncovalently functionalized with polypyrrole (PPy-MWNTs) based on in situ polymerization, and these PPy-MWNTs were used to synthesize PPy-MWNT/PANi composites. The surface-functionalized PPy nanolayer on the MWNTs was found to yield a homogeneous dispersion of MWNTs and strong interfacial adhesion. The resulting composites demonstrated a remarkable enhancement in both electrical conductivity and Seebeck coefficient, and exhibited a high power factor of 3.1 mu W/m K-2 compared with the values of 0.006 mu W/m K-2 for PANi and 0.1 mu W/m K-2 for MWNT/PANi composite at 28.6 wt.% MWNT loading. The obtained results indicate that this method is useful for synthesizing conductive polymer composites with improved thermoelectric performance.