標題: Zr-MOF/Polyaniline Composite Films with Exceptional Seebeck Coefficient for Thermoelectric Material Applications
作者: Lin, Chih-Chien
Huang, Yi-Chia
Usman, Muhammad
Chao, Wen-Hsuan
Lin, Wei-Keng
Luo, Tzuoo-Tsair
Whang, Wha-Tzong
Chen, Chun-Hua
Lu, Kuang-Lieh
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: composites;metal-organic frameworks;polyaniline;Seebeck coefficient;thermoelectric materials
公開日期: 23-Jan-2019
摘要: Controlling the polymerization of aniline in the presence of zirconium-based metal-organic frameworks (Zr-MOFs) using polystyrene sulfonic acid as a dopant resulted in the formation of a new type of freestanding thermoelectric composite film. Polyaniline chains interpenetrate into the Zr-MOFs to enhance the crystallinity of polyaniline, resulting in an improved degree of electrical conductivity. In addition, the inherent porosity of the Zr-MOFs functions to suppress the increase in thermal conductivity, thus dramatically promoting a negative Seebeck coefficient. When 20 wt % Zr-MOF was used, a power factor of up to 664 mu W/(m K-2) was obtained, which was accompanied by a surprisingly large, negative Seebeck coefficient. The new class of MOF-based composites offers a new direction for developing new types of efficient thermoelectric materials.
URI: http://dx.doi.org/10.1021/acsami.8b17308
http://hdl.handle.net/11536/148784
ISSN: 1944-8244
DOI: 10.1021/acsami.8b17308
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 11
起始頁: 3400
結束頁: 3406
Appears in Collections:Articles