MWCNTs-COOH/cotton flexible supercapacitor electrode prepared by improvement one-time dipping and carbonization method
- 44 Downloads
Carboxyl functionalized multiwalled carbon nanotubes (MWCNTs-COOH)/cotton flexible supercapacitor electrode is prepared by a simple and efficient method with high conductivity and excellent electrochemical properties. Firstly, MWCNTs-COOH were successfully loaded on the cotton fabric by improved one-time dipping method, while conducted at high temperature and pressure for 2 h can effectively increase their dense on the substrate. Secondly, the as-prepared composite was pre-oxidized and carbonized at high temperature to increase the carbon content of this composite. The resultant composite obtained high conductivity and large specific area. The electrochemical analysis showed that the maximum specific capacitance of the composite reached 94.3 F g−1 at a current rate of 0.81 A g−1. After 3000 cycles and different angles bending, the composite demonstrated good stability and huge potential in the application of flexible supercapacitor electrode.
KeywordsFlexible supercapacitor electrode Carboxyl functionalized multiwalled carbon nanotubes Cotton One-time dipping method Carbonization
This work is supported by “the Fundamental Research Funds for the Central Universities” (No. CUSF-DH-D-2018065).
- Lee S, Park S-H, Jang K, Yu S, Song C, Kim H-S, Ahn H (2017) Simple, ultra-rapid, versatile method to synthesize cobalt/cobalt oxide nanostructures on carbon fiber paper via intense pulsed white light (IPWL) photothermal reduction for energy storage applications. J Alloys Compd 724:684–694. https://doi.org/10.1016/j.jallcom.2017.07.069 CrossRefGoogle Scholar
- Mojtahed F, Shahidi S, Hezavehi E (2015) Influence of plasma treatment on CNT absorption of cotton fabric and its electrical conductivity and antibacterial activity. J Exp Nanosci 11:1–11Google Scholar
- Pasta M, Mantia FL, Hu L, Deshazer HD, Cui Y (2010) Aqueous supercapacitors on conductive cotton. Phys Rev B 3:452–458Google Scholar
- Zhang X, Yan P, Zhang R, Fin J, Xu J, Wu C, Liu H (2016) Fabrication of graphene and core-shell activated porous carbon-coated carbon nanotube hybrids with excellent electrochemical performance for supercapacitors. Int J Hydrog Energy 41:6394–6402. https://doi.org/10.1016/j.ijhydene.2016.03.034 CrossRefGoogle Scholar