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Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes

Authors
Kim, JongminInamdar, Akbar I.Jo, YongcheolCho, SangeunAhmed, Abu Talha AqueelHou, BoCha, SeungNamKim, Tae GeunKim, HyungsangIm, Hyunsik
Issue Date
21-7월-2020
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.27, pp.13459 - 13469
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF MATERIALS CHEMISTRY A
Volume
8
Number
27
Start Page
13459
End Page
13469
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/54362
DOI
10.1039/d0ta01728k
ISSN
2050-7488
Abstract
The high-activity of metallic nanofilament array (NFA) embedded tungsten oxide (WO3) bifunctional electrodes for electrochromism and electrochemical energy storage is presented. The NFA reduces charge transfer resistance and increases the electrochemically active surface area at the electrode-electrolyte interface. The NFA-embedded WO3 electrode exhibits a specific capacity of 214 F g(-1) (pristine WO3: 133 F g(-1)) at 0.25 mA cm(-2), excellent cycling stability with similar to 92% capacitance retention after 2000 cycles (pristine WO3: similar to 75% capacitance retention) and a coloration efficiency of 128 cm(2) C-1 (pristine WO3: 91 cm(2) C-1) with superb optical modulation. These properties are significantly more advanced compared to the pristine WO3 electrode and superior to previously reported WO3-based composites and nanostructured materials.
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공과대학 (전기전자공학부)
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