Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes

Jongmin Kim; Akbar I. Inamdar; Yongcheol Jo; Sangeun Cho; Abu Talha Aqueel Ahmed; Bo Hou; Seungnam Cha; Tae Geun Kim; Hyungsang Kim; Hyunsik Im

doi:10.1039/d0ta01728k

Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes

Jongmin Kim, Akbar I. Inamdar, Yongcheol Jo, Sangeun Cho, Abu Talha Aqueel Ahmed, Bo Hou, Seungnam Cha, Tae Geun Kim, Hyungsang Kim, Hyunsik Im

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

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 ∼92% capacitance retention after 2000 cycles (pristine WO3: ∼75% capacitance retention) and a coloration efficiency of 128 cm2 C-1 (pristine WO3: 91 cm2 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.

Original language	English
Pages (from-to)	13459-13469
Number of pages	11
Journal	Journal of Materials Chemistry A
Volume	8
Issue number	27
DOIs	https://doi.org/10.1039/d0ta01728k
Publication status	Published - 2020 Jul 21

Bibliographical note

Publisher Copyright:
© 2020 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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title = "Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes",

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 ∼92% capacitance retention after 2000 cycles (pristine WO3: ∼75% capacitance retention) and a coloration efficiency of 128 cm2 C-1 (pristine WO3: 91 cm2 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.",

author = "Jongmin Kim and Inamdar, {Akbar I.} and Yongcheol Jo and Sangeun Cho and {Aqueel Ahmed}, {Abu Talha} and Bo Hou and Seungnam Cha and Kim, {Tae Geun} and Hyungsang Kim and Hyunsik Im",

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year = "2020",

month = jul,

day = "21",

doi = "10.1039/d0ta01728k",

language = "English",

volume = "8",

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TY - JOUR

T1 - Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes

AU - Kim, Jongmin

AU - Inamdar, Akbar I.

AU - Jo, Yongcheol

AU - Cho, Sangeun

AU - Aqueel Ahmed, Abu Talha

AU - Hou, Bo

AU - Cha, Seungnam

AU - Kim, Tae Geun

AU - Kim, Hyungsang

AU - Im, Hyunsik

PY - 2020/7/21

Y1 - 2020/7/21

N2 - 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 ∼92% capacitance retention after 2000 cycles (pristine WO3: ∼75% capacitance retention) and a coloration efficiency of 128 cm2 C-1 (pristine WO3: 91 cm2 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.

AB - 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 ∼92% capacitance retention after 2000 cycles (pristine WO3: ∼75% capacitance retention) and a coloration efficiency of 128 cm2 C-1 (pristine WO3: 91 cm2 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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DO - 10.1039/d0ta01728k

M3 - Article

AN - SCOPUS:85089515029

SN - 2050-7488

VL - 8

SP - 13459

EP - 13469

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 27

ER -

Nanofilament array embedded tungsten oxide for highly efficient electrochromic supercapacitor electrodes

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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