期刊
FRONTIERS IN ENERGY RESEARCH
卷 -, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fenrg.2014.00031
关键词
liquid crystalline; binder-free; self-assembled; conducting polymer; supercapacitor; PEDOT:PSS
资金
- Commonwealth of Australia, Automotive CRC
- Australian Research Council (ARC)
Binder-free self-assembled 3D architecture electrodes have been fabricated by a novel convenient method. Liquid crystalline graphene oxide was used as precursor to interact with poly(3,4-ethylene-dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) in dispersion in order to form a conductive polymer entrapped, self-assembled layer-by-layer structure. This advanced network containing PEDOIPSS enabled us to ascribe the superior electrochemical properties of particular graphene sheets. This layer-by-layer self-assembled 3D architecture of best performing composite (reduced graphene oxide PEDOIPSS 25) showed excellent electrochemical performance of 434 F g-(1) through chemical treatment. To highlight these advances, we further explored the practicality of the as -prepared electrode by varying the composite material content. An asymmetric supercapacitor device using aqueous electrolyte was also studied of this same composite. The resulting performance from this set up included a specific capacitance of 132 F g-1. Above all, we observed an increase in specific capacitance (19%) with increase in cycle life emphasizing the excellent stability of this device.
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