Flexible polypyrrole/copper sulfide/bacterial cellulose nanofibrous composite membranes as supercapacitor electrodes.

Title Flexible polypyrrole/copper sulfide/bacterial cellulose nanofibrous composite membranes as supercapacitor electrodes.
Authors S. Peng; L. Fan; C. Wei; X. Liu; H. Zhang; W. Xu; J. Xu
Journal Carbohydr Polym
DOI 10.1016/j.carbpol.2016.10.004
Abstract

Polypyrrole (PPy) and copper sulfide (CuS) have been successfully deposited on bacterial cellulose (BC) membranes to prepare nanofibrous composite electrodes of PPy/CuS/BC for flexible supercapacitor applications. The introduction of CuS remarkably improves the specific capacitance and cycling stability of BC-based electrodes. The specific capacitance of the supercapacitors based on the PPy/CuS/BC electrodes can reach to about 580Fg(-1) at a current density of 0.8mAcm(-2) and can retain about 73% of their initial value after 300 cycles, while the PPy/BC-based device could retain only 21.7% after 300 cycles. This work provides a promising approach to fabricate cost-effective and flexible nanofibrous composite membranes for high-performance supercapacitor electrodes.

Citation S. Peng; L. Fan; C. Wei; X. Liu; H. Zhang; W. Xu; J. Xu.Flexible polypyrrole/copper sulfide/bacterial cellulose nanofibrous composite membranes as supercapacitor electrodes.. Carbohydr Polym. 2017;157:344352. doi:10.1016/j.carbpol.2016.10.004

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