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- Title
FeV LDH Coated on Sandpaper as an Electrode Material for High-Performance Flexible Energy Storage Devices.
- Authors
Park, Jihyeon; Kim, Youngsu; Kitchamsetti, Narasimharao; Jo, Seungju; Lee, Seungjae; Song, Jubin; Park, Wook; Kim, Daewon
- Abstract
Recently, considerable research efforts to achieve advanced design of promising electroactive materials as well as unique structures in supercapacitor electrodes have been explored for high-performance energy storage systems. We suggest the development of novel electroactive materials with an enlarged surface area for sandpaper materials. Based on the inherent micro-structured morphologies of the sandpaper substrate, nano-structured Fe-V electroactive material can be coated on it by facile electrochemical deposition technique. A hierarchically designed electroactive surface is covered with FeV-layered double hydroxide (LDH) nano-flakes on Ni-sputtered sandpaper as a unique structural and compositional material. The successful growth of FeV-LDH is clearly revealed by surface analysis techniques. Further, electrochemical studies of the suggested electrodes are carried out to optimize the Fe-V composition as well as the grit number of the sandpaper substrate. Herein, optimized Fe0.75V0.25 LDHs coated on #15000 grit Ni-sputtered sandpaper are developed as advanced battery-type electrodes. Finally, along with the negative electrode of activated carbon and the FeV-LDH electrode, it is utilized for hybrid supercapacitor (HSC) assembly. The fabricated flexible HSC device indicates high energy and power density by showing excellent rate capability. This study is a remarkable approach to improving the electrochemical performance of energy storage devices using facile synthesis.
- Subjects
ENERGY storage equipment; ENERGY storage; SUPERCAPACITOR electrodes; SANDPAPER; ELECTROACTIVE substances; CARBON electrodes; NEGATIVE electrode
- Publication
Polymers (20734360), 2023, Vol 15, Issue 5, p1136
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym15051136