期刊
RSC ADVANCES
卷 8, 期 55, 页码 31296-31302出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra05270k
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资金
- Air Force Office of Scientific Research (AFOSR) [FA9550-15-1-0228]
We demonstrate a flexible and light-weight supercapacitor based on bacterial nanocellulose (BNC) incorporated with tin oxide (SnO2) nanoparticles, graphene oxide (GO) and poly(3,4-ethylenedioxyiophene)-poly(styrenesulfonate) (PEDOT:PSS). The SnO2 and GO flakes are introduced into the fibrous nanocellulose matrix during bacteria-mediated synthesis. The flexible PEDOT:PSS/SnO2/rGO/BNC electrodes exhibited excellent electrochemical performance with a capacitance of 445 F g(-1) at 2 A g(-1) and outstanding cycling stability with 84.1% capacitance retention over 2500 charge/discharge cycles. The flexible solid-state supercapacitors fabricated using PEDOT:PSS/SnO2/rGO/BNC electrodes and poly(vinyl alcohol) (PVA)-H2SO4 coated BNC as a separator exhibited excellent energy storage performance. The fabrication method demonstrated here is highly scalable and opens up new opportunities for the fabrication of flexible cellulose-based energy storage devices.
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