Facile synthesis of three-dimensional (3D) interconnecting polypyrrole (PPy) nanowires/nanofibrous textile composite electrode for high performance supercapacitors. (October 2017)

• Record Type: Journal Article
• Authors: Liu, Qiongzhen; Wang, Bo; Chen, Jiahui; Li, Fei; Liu, Ke; Wang, Yuedan; Li, Mufang; Lu, Zhentan; Wang, Wenwen; Wang, Dong
• Is Part Of: Composites. Volume 101(2017)
• Page Start: 30
• Page End: 40
• Publication Date: 2017-10
• Subjects: A. Supercapacitor -- B. Pseudocapacitance -- C. Polypyrrole nanowires -- D. Flexible electrode; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2017.05.033
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: In present work, polypyrrole (PPy) has been in-situ polymerized on a poly(vinyl alcohol- co -ethylene) (PVA- co -PE) nanofirous textile to form a 3D interconnecting PPy nanowires/nanofibrous textile composite electrode (designated as NW-PPy/NFs/PET). It demonstrates that the introduction of anthraquinone-2-sulfonic acid sodium (AQS) can tune the morphology of PPy from nanospheres to nanowires. The resulting PPy@PVA- co -PE conformal nanofibers act as bridges among intertwined PPy@PET fibers and PPy nanowires, leading to continuous pathways for ion/electron transfer and larger surface area for faradic reaction. Benefiting from this unique structure, the two-electrode supercapacitor using NaCl solution as electrolyte delivers a high power density of 800 W kg −1 at an energy density of 20 W h kg −1 per mass of active materials. Furthermore, the symmetric all-solid-state NW-PPy/NFs/PET supercapacitor demonstrates high flexibility and cycle stability. Therefore, this work may open a new way to develop light weight and cost-effective electrodes for flexible energy storage devices.