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Understanding the evolution of mechanical and electrical properties of wet-spun PEDOT:PSS fibers with increasing carbon nanotube loading

文献类型： 外文期刊

作者： Shao, Yanqiu 1 ; Zhao, Xu 1 ; Liu, Lin 1 ; Liu, Chuang 1 ; Luo, Zirong 2 ; Kong, Na 2 ; Tao, Jinlong 2 ; Zhang, Jizhen 2 ;

作者机构： 1.Mu Danjiang Normal Univ, Coll Chem & Chem Engn, Heilongjiang Key Lab Photoelect Funct Mat, Mudanjiang 157011, Peoples R China

2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Hainan Prov Key Lab Nat Rubber Proc, Zhanjiang 524001, Peoples R China

3.Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia

关键词： PEDOT; PSS; Carbon nanotube; Fiber; Mechanical properties; Supercapacitors

期刊名称：COMPOSITES COMMUNICATIONS （ 影响因子：8.0； 五年影响因子：7.5 ）

ISSN： 2452-2139

年卷期： 2023 年 40 卷

页码：

收录情况： SCI

摘要： Unprecedented demands for advanced fiber materials have been raised by the quick development of wearable intelligent devices. It is still a significant problem to increase the mechanical qualities of fibers without compromising their chemical properties. The impact of different carbon nanotube (CNT) loading on the physical properties of wet-spun poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) fibers are explored in depth along with a wet spinning process for the continuous fabrication of PEDOT:PSS/CNT hybrid fibers. We discovered that the main challenge in a mechanically reinforced system of PEDOT:PSS fibers is to prevent the binding and aggregation of CNT within the fibres; enhancement is typically accomplished at 5 wt% CNT loadings. On the other hand, the conductivity of PEDOT:PSS fibers rises as CNT content increases. By applying the new understanding, the highly conductive PEDOT:PSS/CNT hybrid fiber exhibits greater rate performance and cycle stability in the electrochemical test is obtained. The PEDOT:PSS/CNT hybrid fiber-based fiber-shaped supercapacitors (FSC) have been assembled and they show good long-term cycle stability. Meanwhile, energy and power densities reach -16.05 mW h cm-3 and -13292 mW cm-3, respectively. This work provides a favorable reference for the mass production of fiber electrodes with high mechanical properties for energy storage.

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