期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 478, 期 -, 页码 107-116出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2016.05.056
关键词
Prussian blue; Carbon nanostructures; Thin films; Flexible devices; Ion-battery; Nanocomposites
资金
- CNPq
- CAPES
- NENNAM (Pronex)
- NENNAM (FundacaoAraucaria/CNPq)
- National Institute of Science and Technology of Carbon Nanomaterials
Thin films of either unpurified single-walled carbon nanotubes (SWCNT) or iron-filled multi-walled carbon nanotubes (MWCNT) were deposited through the liquid-liquid interfacial route over plastic substrates, yielding transparent, flexible and ITO-free electrodes. The iron species presented in both electrodes (inside of the MWCNT cavities or outside of the SWCNT bundles, related to the catalyst remaining of the growth process) were employed as reactant to the electrosynthesis of Prussian blue (PB), yielding carbon nanotubes/Prussian blue nanocomposite thin films, which were characterized by Raman spectroscopy, scanning electron microscopy, atomic force microscopy, cyclic voltammetry and galvanostatic charge/discharge measurements. The nanocomposite films were employed as cathodes for flexible, transparent and ITO-free potassium batteries, showing reversible charge/discharge behavior and specific capacitance of 8.3 mA h cm(-3) and 2.7 mA h cm(-3) for SWCNT/PB and MWCNT/PB, respectively. (C) 2016 Elsevier Inc. All rights reserved.
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