期刊
ENERGIES
卷 15, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/en15218256
关键词
electric permittivity; electrodeposition; natural fibers; paper electrodes; energy storage
资金
- Korean Ministry of Trade, Industry and Energy (MOTIE) [20214000000640]
This study investigates the morphological, dielectric, and impedance properties of lignocellulose-lead oxide composite sheets electrodeposited with silver nanoparticles. The impedance spectra of the electrodeposited sample vary depending on the deposition thickness of the Ag particles, showing drift of conductive species.
Functional materials, in the combination of lignocelluloses, known as natural fibers, with oxide materials, can result in cultivating functional properties such as flexibility, relativity good electrical conduction, good electrical charge storage capacity, and tunable electric permittivity. This study presents the morphological, dielectric, and impedance properties of lignocellulose-lead oxide (LC/PbO2) composite sheets electrodeposited with silver metallic nanoparticles for various time spans. The uncoated samples show a rather simple behavior where the impedance data fit well to the two-system model with different relaxation times. On the other side, the impedance spectra of the electrodeposited sample have varying features, which mainly depend upon the deposition thickness of the Ag particles. The common feature is the drift of conductive species, as seen from the straight-line behavior in the Nyquist plots, which were fitted using a Warburg element in the equivalent circuit model.
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