A self-supported electrode for supercapacitors based on nanocellulose/multi-walled carbon nanotubes/polypyrrole composite |
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| Authors: | Peng Lv Yeyun Meng Lingxia Song Hao Pang Weiqu Liu |
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| Affiliation: | Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650 China.; Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650 China ; CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou 510650 China ; CASH GCC (Nanxiong) Research Institute of New Materials Co., Ltd, Nanxiong 512400 China ; University of Chinese Academy of Sciences, Beijing 100049 China |
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| Abstract: | A robust self-supported electrode based on nanocellulose fibers (CNF), multi-walled carbon nanotubes (CNT), and polypyrrole (PPy) was prepared by a facile combination of ultrasonic dispersion and consequent in situ polymerization. In addition, the feasibility of utilizing this ternary composite as an electrode for supercapacitors was studied. The results revealed that the obtained CNF/CNT/PPy composite exhibited a large specific capacitance of 200.8 F g−1 at 0.5 A g−1. Equally important, the electrode capacitance retained about 90% of its initial value after 5000 charge/discharge cycles at a current density of 1 A g−1, which thus demonstrated its excellent cycling stability. The simple integration route and outstanding electrochemical properties distinguish this new composite as a prospective candidate for use as a high-performance electrode in supercapacitors.A robust self-supported electrode was prepared by a facile combination of ultrasonic dispersion and consequent in situ polymerization. |
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