Electrochemical performance of activated carbon-supported vanadomolybdates electrodes for energy conversion

Sukanya Maity; Anjana Anandan Vannathan; Tatinaidu Kella; Debaprasad Shee; Partha Pratim Das; Sib Sankar Mal

doi:10.1016/j.ceramint.2021.06.128

Electrochemical performance of activated carbon-supported vanadomolybdates electrodes for energy conversion

Sukanya Maity, Anjana Anandan Vannathan, Tatinaidu Kella, Debaprasad Shee, Partha Pratim Das^*, Sib Sankar Mal^*

^*Corresponding author for this work

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

22 Scopus citations

Abstract

Reinforcing polyoxomolybdates (POMs) into the activated carbon (AC) template engenders a nanohybrid electrode material for high-performance supercapacitor applications. Herein, a first-time novel integration of two polyoxometalates ([PVMo₁₁O₄₀]^4-, [PV₂Mo₁₀O₄₀]^5-) with AC has been demonstrated, and their structural and electrochemical performances were analyzed. AC-VMo₁₁ composite displayed an enhanced capacitance of 450 Fg^-1 with an improved energy density of 59.7 Whkg^-1. Furthermore, the symmetric supercapacitor cell for AC-VMo₁₁ and AC-V₂Mo₁₀ showed high cell capacitances of 38.8 and 20.01 mF, respectively, alongside 99.99% capacitance retention of over 5000 cycles. In addition, the influence of ionic liquid as an electrolyte on AC-V₂Mo₁₀ based supercapacitor cell was investigated in tetrabutylammonium bromide (TBAB) electrolyte solution.

Original language	English
Pages (from-to)	27132-27141
Number of pages	10
Journal	Ceramics International
Volume	47
Issue number	19
DOIs	https://doi.org/10.1016/j.ceramint.2021.06.128
State	Published - Oct 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd and Techna Group S.r.l.

Keywords

Activated carbon
Electrochemical impedance spectroscopy
Energy density
Power density
Symmetric supercapacitors
Vanadophosphomolybdate

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2021.06.128

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@article{6125128e07a84894808a8b3cfee441f4,

title = "Electrochemical performance of activated carbon-supported vanadomolybdates electrodes for energy conversion",

abstract = "Reinforcing polyoxomolybdates (POMs) into the activated carbon (AC) template engenders a nanohybrid electrode material for high-performance supercapacitor applications. Herein, a first-time novel integration of two polyoxometalates ([PVMo11O40]4-, [PV2Mo10O40]5-) with AC has been demonstrated, and their structural and electrochemical performances were analyzed. AC-VMo11 composite displayed an enhanced capacitance of 450 Fg-1 with an improved energy density of 59.7 Whkg-1. Furthermore, the symmetric supercapacitor cell for AC-VMo11 and AC-V2Mo10 showed high cell capacitances of 38.8 and 20.01 mF, respectively, alongside 99.99\% capacitance retention of over 5000 cycles. In addition, the influence of ionic liquid as an electrolyte on AC-V2Mo10 based supercapacitor cell was investigated in tetrabutylammonium bromide (TBAB) electrolyte solution.",

keywords = "Activated carbon, Electrochemical impedance spectroscopy, Energy density, Power density, Symmetric supercapacitors, Vanadophosphomolybdate",

author = "Sukanya Maity and Vannathan, \{Anjana Anandan\} and Tatinaidu Kella and Debaprasad Shee and Das, \{Partha Pratim\} and Mal, \{Sib Sankar\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

year = "2021",

month = oct,

doi = "10.1016/j.ceramint.2021.06.128",

language = "English",

volume = "47",

pages = "27132--27141",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd.",

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}

TY - JOUR

T1 - Electrochemical performance of activated carbon-supported vanadomolybdates electrodes for energy conversion

AU - Maity, Sukanya

AU - Vannathan, Anjana Anandan

AU - Kella, Tatinaidu

AU - Shee, Debaprasad

AU - Das, Partha Pratim

AU - Mal, Sib Sankar

PY - 2021/10

Y1 - 2021/10

N2 - Reinforcing polyoxomolybdates (POMs) into the activated carbon (AC) template engenders a nanohybrid electrode material for high-performance supercapacitor applications. Herein, a first-time novel integration of two polyoxometalates ([PVMo11O40]4-, [PV2Mo10O40]5-) with AC has been demonstrated, and their structural and electrochemical performances were analyzed. AC-VMo11 composite displayed an enhanced capacitance of 450 Fg-1 with an improved energy density of 59.7 Whkg-1. Furthermore, the symmetric supercapacitor cell for AC-VMo11 and AC-V2Mo10 showed high cell capacitances of 38.8 and 20.01 mF, respectively, alongside 99.99% capacitance retention of over 5000 cycles. In addition, the influence of ionic liquid as an electrolyte on AC-V2Mo10 based supercapacitor cell was investigated in tetrabutylammonium bromide (TBAB) electrolyte solution.

AB - Reinforcing polyoxomolybdates (POMs) into the activated carbon (AC) template engenders a nanohybrid electrode material for high-performance supercapacitor applications. Herein, a first-time novel integration of two polyoxometalates ([PVMo11O40]4-, [PV2Mo10O40]5-) with AC has been demonstrated, and their structural and electrochemical performances were analyzed. AC-VMo11 composite displayed an enhanced capacitance of 450 Fg-1 with an improved energy density of 59.7 Whkg-1. Furthermore, the symmetric supercapacitor cell for AC-VMo11 and AC-V2Mo10 showed high cell capacitances of 38.8 and 20.01 mF, respectively, alongside 99.99% capacitance retention of over 5000 cycles. In addition, the influence of ionic liquid as an electrolyte on AC-V2Mo10 based supercapacitor cell was investigated in tetrabutylammonium bromide (TBAB) electrolyte solution.

KW - Activated carbon

KW - Electrochemical impedance spectroscopy

KW - Energy density

KW - Power density

KW - Symmetric supercapacitors

KW - Vanadophosphomolybdate

UR - https://www.scopus.com/pages/publications/85108971684

U2 - 10.1016/j.ceramint.2021.06.128

DO - 10.1016/j.ceramint.2021.06.128

M3 - Article

AN - SCOPUS:85108971684

SN - 0272-8842

VL - 47

SP - 27132

EP - 27141

JO - Ceramics International

JF - Ceramics International

IS - 19

ER -

Electrochemical performance of activated carbon-supported vanadomolybdates electrodes for energy conversion

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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