Flexible polypyrrolone-based microporous carbon nanofibers for high-performance supercapacitors. Issue 45 (17th July 2018)

• Record Type: Journal Article
• Authors: Liu, Shuwu; Zeng, Yue; Fang, Hong; Guo, Qiaohui; Sui, Ling; Hou, Haoqing
• Is Part Of: RSC advances. Volume 8:Issue 45(2018)
• Page Start: 25568
• Page End: 25574
• Publication Date: 2018-07-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra04479a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A flexible polypyrrolone (BBB)/polyimide (PI) composite-based carbon nanofiber membrane (PBPICF) has been prepared by a facile electrospinning and carbonization process. Abstract : Flexible materials have drawn considerable attention due to the demand for wearable and flexible electronic products. Seeking new kinds of precursors for preparing carbon nanofibers with good flexibility for high-performance supercapacitors is a hot issue. In this work, a flexible polypyrrolone (BBB)/polyimide (PI) composite-based carbon nanofiber membrane (PBPICF) is prepared by a facile electrospinning and carbonization process. The PBPICF membranes exhibit a three-dimensional (3D) porous, fluffy and self-standing structure with good mechanical performance and flexibility, and can be arbitrarily bent and folded. PBPICF-65-35 (consisting of BBB (65 wt%) and PI (35 wt%)) exhibits a high specific capacitance of 172.44 F g −1 in 6 M KOH aqueous solution, which is two-fold more than that of commercial polyacrylonitrile-based carbon nanofibers. In addition, PBPICF-65-35 also displays good power density (90 W kg −1 ) and energy density (19.4 W h kg −1 ), and the capacitance remains at 96% even after 10 000 cycles at 1.0 A g −1 . Therefore, the simple preparation and good capacitance performance of PBPICFs make them a promising binder-free electrode for wearable supercapacitors.