NDLI: Fabrication of a flexible free-standing film electrode composed of polypyrrole coated cellulose nanofibers/multi-walled carbon nanotubes composite for supercapacitors

Content Provider	Royal Society of Chemistry (RSC)
Author	Pan, Yuanyuan Li, Nana Wang, Fei Wang, Haiying Liu, Shengnan Chen, Chuchu Li, Dagang Yang, Chuang Li, Xiaoyan Li, Jianyu
Copyright Year	2016
Abstract	Today, flexible energy storage systems have become attractive alternatives for applications in portable electronic devices. This account reports a simple and low-cost “dipping and polymerization” method for preparing flexible and free-standing supercapacitor film electrodes. The process consisted of depositing polypyrrole (PPy) coating on the surface and inside the network of an entangled cellulose nanofibers (CNFs)/multi-walled carbon nanotubes (MWCNTs) film. The electrochemical performance of the resulting CNFs/MWCNTs/PPy hybrid electrode was evaluated and compared with that of CNFs/MWCNTs film electrodes. The CNFs/MWCNTs/PPy nanocomposite electrode exhibited a particular entangled 3D network structure with an elevated specific capacitance of 288 F g−1, obtained at a scan rate of 5 mV s−1. This value is higher than that of the CNFs/MWCNTs electrode, calculated to be 32.2 F g−1. Furthermore, the CNFs/MWCNTs/PPy electrode exhibited excellent redox reversibility and cycle stability. This novel procedure could provide an effective method for achieving flexible, free-standing, high-performance, low-cost, and environmentally friendly materials for use in supercapacitor electrodes.
Starting Page	86744
Ending Page	86751
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	6
Issue Number	89
Journal	RSC Advances
DOI	10.1039/c6ra19529f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Carbon nanotube Electrode Cellulose Polymerization Supercapacitor Electrochemistry Redox Capacitance Nanocomposite Polypyrrole Three-dimensional space
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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