Reduced graphene oxide/g-C3N4 modified carbon fibers for high performance fiber supercapacitors. (23rd December 2020)

• Record Type: Journal Article
• Authors: Ding, Mengru; Qu, Yuanduo; Zhang, Xueyu; Duan, Lianfeng; Li, Xuesong; Lü, Wei
• Is Part Of: New journal of chemistry. Volume 45:Number 2(2021)
• Page Start: 923
• Page End: 929
• Publication Date: 2020-12-23
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj05072e
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The increasing demand for high performance portable electronic devices has promoted the research of flexible energy storage devices, and various devices have been suggested and investigated. Abstract : The increasing demand for high performance portable electronic devices has promoted the research of flexible energy storage devices, and various devices have been suggested and investigated. Among them, wearable fiber supercapacitors have attracted great attention. However, their performances such as energy density and cycling stability still need further improvement for commercial application. Herein, we have proposed a design of fiber electrodes, in which the acidified carbon fibers were decorated by a reduced graphene oxide (rGO)/g-C3 N4 coating layer via a facile hydrothermal method. The structural and electrochemical properties of composite fibers were investigated. Finally, parallel and symmetric all-solid-state wire-shaped supercapacitors based on rGO/g-C3 N4 /carbon fibers were fabricated. A specific area capacitance of 61 mF cm −2 was achieved and 90% capacitance was maintained after 5000 cycles, indicating the excellent performance of the fabricated devices. Such design holds great promise for flexible electronics.