The effect of graphite oxide on the thermoelectric properties of polyaniline

被引：201

作者：

Zhao, Yuan ^{[1
]}

Tang, Guang-Shi ^{[1
]}

Yu, Zhong-Zhen ^{[2
]}

Qi, Jun-Shan ^{[3
]}

机构：

[1] Beijing Inst Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Dept Polymer Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[3] Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China

来源：

CARBON | 2012年 / 50卷 / 08期

基金：

中国国家自然科学基金;

关键词：

GRAPHENE OXIDE; POLYMER COMPOSITES; PERFORMANCE; BEHAVIOR;

D O I：

10.1016/j.carbon.2012.03.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Graphite oxide (GO)/ordered polyaniline (PANI) composites have been prepared through an in situ polymerization. TEM, XRD, FTIR and XPS analyses show that the PANI grew along the surface of exfoliated GO as a template to form a more ordered structure with high crystallinity during polymerization. Compared with pure PANT, both higher electrical conductivity and higher Seebeck coefficient of GO/PANI composites result from the increased carrier mobility, which is confirmed by Hall measurement. Strong interactions exist between graphene oxide and PANT, including electrostatic forces, hydrogen bonding and pi-pi stacking. There is no significant difference in thermal conductivity between GO/PANI composites and PANI. The maximum electrical conductivity and Seebeck coefficient of the composites reach 751 S m(-1) and 28.31 mu V K-1, respectively. The maximum thermoelectric figure of merit is up to 4.86 x 10(-4), 2 orders of magnitude higher than that of pure PANI. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3064 / 3073

页数：10

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