期刊
RSC ADVANCES
卷 10, 期 55, 页码 33010-33017出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra05589a
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资金
- Russian Foundation for Basic Research [18-29-23042]
The development of novel materials with improved functional characteristics for supercapacitor electrodes is of current concern and calls for elaboration of innovative approaches. We report on an eco-friendly enzymatic synthesis of a composite based on poly(3,4-ethylenedioxythiophene) (PEDOT) and multi-walled carbon nanotubes (MWCNTs). The redox active compound, sodium 1,2-naphthoquinone-4-sulfonate (NQS), was used as a dopant for the backbone of the polymer. Oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT) was catalyzed by a high redox potential laccase from the fungusTrametes hirsuta. Atmospheric oxygen served as an oxidant. A uniform thin layer of NQS-doped PEDOT formed on the surface of MWCNTs as a result of the enzymatic polymerization. The PEDOT-NQS/MWCNT composite showed a high specific capacitance ofca.575 F g(-1)at a potential scan rate of 5 mV s(-1)and an excellent cycling stability within a potential window between -0.5 and 1.0 V, which makes it a promising electrode material for high-performance supercapacitors.
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