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: | 23-一月-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 |
顯示於類別: | 期刊論文 |