通过二甲基亚砜介导的电聚合提高聚苯胺/单壁碳纳米管复合材料的热电性能
Enhancing Thermoelectric Performance of Polyaniline/Single-Walled Carbon Nanotube Composites via Dimethyl Sulfoxide-Mediated Electropolymerization.
作者信息
Yin Sixing, Lu Wentao, Wu Xin, Luo Qunyi, Wang Erqiang, Guo Cun-Yue
机构信息
School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
出版信息
ACS Appl Mater Interfaces. 2021 Jan 27;13(3):3930-3936. doi: 10.1021/acsami.0c19100. Epub 2021 Jan 17.
The fabrication of flexible high-performance organic/inorganic thermoelectric (TE) composite films has been a hot spot for researchers in recent years. In this work, dynamic 3-phase interfacial electropolymerization of aniline, together with physical mixing with single-walled carbon nanotubes (SWCNTs), was adopted to prepare polyaniline/SWCNT (PANI/SWCNT) TE composites. The dimethyl sulfoxide (DMSO) added into the electrochemical polymerization system affords strong capability in improving the TE performance of composite films. Moreover, varying loadings of SWCNTs can also conveniently tune the TE performance of composites. Hence, the resultant composites afford the highest power factor (PF) of 236.4 ± 5.9 μW m K at room temperature. This work demonstrates that the introduction of DMSO into the electrolyte and the electrochemical polymerization are highly effective in fabricating high-performance PANI/SWCNT TE composites.
近年来，柔性高性能有机/无机热电（TE）复合薄膜的制备一直是研究人员关注的热点。在这项工作中，采用苯胺的动态三相界面电聚合以及与单壁碳纳米管（SWCNT）物理混合的方法制备了聚苯胺/单壁碳纳米管（PANI/SWCNT）TE复合材料。添加到电化学聚合体系中的二甲基亚砜（DMSO）具有很强的改善复合薄膜TE性能的能力。此外，改变SWCNT的负载量也可以方便地调节复合材料的TE性能。因此，所得复合材料在室温下具有236.4±5.9 μW m K的最高功率因数（PF）。这项工作表明，将DMSO引入电解质以及进行电化学聚合在制备高性能PANI/SWCNT TE复合材料方面非常有效。
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