Activated graphene oxide/reduced graphene oxide electrodes and low viscous sulfonium cation based ionic liquid incorporated flexible gel polymer electrolyte for high rate supercapacitors

Mohd Suleman, Mohd. Amir Radhi Othman, S. A. Hashmi, Yogesh Kumar, Mohamad Deraman, Ramli Omar, M. R M Jasni

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

High rate performance of symmetrical electrical-double layer capacitors (EDLCs) constructed with activated graphene oxide (ac-GO)/activated reduced graphene oxide (ac-RGO) electrodes and ionic liquid (triethylsulfonium bis(trifluoromethylsulfonyl)imide, incorporated plastic crystal succinonitrile (SN) based flexible gel polymer electrolytes (GPE) have been reported. The 3D architecture with predominantly meso-porous character of the ac-RGO, in combination with SN-based high ion conducting GPE, renders it a high rate electrode with high value of knee frequency, fk (∼966 Hz), low response time τ0 (∼20 ms) and high pulse power P0 (∼111 kW kg−1) as compared to the ac-GO-electrode that exhibits the corresponding values: fk (∼215 Hz), τ0 (∼60 ms) and P0 (∼58 kW kg−1). The ac-RGO based EDLCs offer higher specific power (∼118 kW kg−1) than that for ac-GO-based EDLC (∼41 kW kg−1), as evaluated from GCD studies. However, due to the additional pseudo-capacitance arising from leftover oxygen functional groups, the ac-GO-electrodes exhibit higher values of specific capacitance and specific energy (∼88–96 F g−1 and 25 Wh kg−1, respectively) as compared to the ac-RGO based EDLCs with specific capacitance ∼66–72 F g−1 and specific energy ∼18 Wh kg−1). Both the EDLC cells exhibit stable capacitive performance up to ∼11,000–13,000 GCD cycles.

Original languageEnglish
Pages (from-to)3376-3392
Number of pages17
JournalJournal of Alloys and Compounds
Volume695
DOIs
Publication statusPublished - 25 Feb 2017

Fingerprint

Ionic Liquids
Graphite
Ionic liquids
Oxides
Graphene
Electrolytes
Cations
Polymers
Gels
Positive ions
Electrodes
Capacitors
Capacitance
Imides
Supercapacitor
Functional groups
Ions
Oxygen
Plastics
Crystals

Keywords

  • Activated graphene oxide
  • Activated reduced graphene oxide
  • Electrical-double layer capacitor
  • Gel polymer electrolyte
  • Ionic liquid
  • Plastic crystal

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Activated graphene oxide/reduced graphene oxide electrodes and low viscous sulfonium cation based ionic liquid incorporated flexible gel polymer electrolyte for high rate supercapacitors. / Suleman, Mohd; Othman, Mohd. Amir Radhi; Hashmi, S. A.; Kumar, Yogesh; Deraman, Mohamad; Omar, Ramli; Jasni, M. R M.

In: Journal of Alloys and Compounds, Vol. 695, 25.02.2017, p. 3376-3392.

Research output: Contribution to journalArticle

@article{b2a7f0f421bb45d39ca438554f336253,
title = "Activated graphene oxide/reduced graphene oxide electrodes and low viscous sulfonium cation based ionic liquid incorporated flexible gel polymer electrolyte for high rate supercapacitors",
abstract = "High rate performance of symmetrical electrical-double layer capacitors (EDLCs) constructed with activated graphene oxide (ac-GO)/activated reduced graphene oxide (ac-RGO) electrodes and ionic liquid (triethylsulfonium bis(trifluoromethylsulfonyl)imide, incorporated plastic crystal succinonitrile (SN) based flexible gel polymer electrolytes (GPE) have been reported. The 3D architecture with predominantly meso-porous character of the ac-RGO, in combination with SN-based high ion conducting GPE, renders it a high rate electrode with high value of knee frequency, fk (∼966 Hz), low response time τ0 (∼20 ms) and high pulse power P0 (∼111 kW kg−1) as compared to the ac-GO-electrode that exhibits the corresponding values: fk (∼215 Hz), τ0 (∼60 ms) and P0 (∼58 kW kg−1). The ac-RGO based EDLCs offer higher specific power (∼118 kW kg−1) than that for ac-GO-based EDLC (∼41 kW kg−1), as evaluated from GCD studies. However, due to the additional pseudo-capacitance arising from leftover oxygen functional groups, the ac-GO-electrodes exhibit higher values of specific capacitance and specific energy (∼88–96 F g−1 and 25 Wh kg−1, respectively) as compared to the ac-RGO based EDLCs with specific capacitance ∼66–72 F g−1 and specific energy ∼18 Wh kg−1). Both the EDLC cells exhibit stable capacitive performance up to ∼11,000–13,000 GCD cycles.",
keywords = "Activated graphene oxide, Activated reduced graphene oxide, Electrical-double layer capacitor, Gel polymer electrolyte, Ionic liquid, Plastic crystal",
author = "Mohd Suleman and Othman, {Mohd. Amir Radhi} and Hashmi, {S. A.} and Yogesh Kumar and Mohamad Deraman and Ramli Omar and Jasni, {M. R M}",
year = "2017",
month = "2",
day = "25",
doi = "10.1016/j.jallcom.2016.12.023",
language = "English",
volume = "695",
pages = "3376--3392",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Activated graphene oxide/reduced graphene oxide electrodes and low viscous sulfonium cation based ionic liquid incorporated flexible gel polymer electrolyte for high rate supercapacitors

AU - Suleman, Mohd

AU - Othman, Mohd. Amir Radhi

AU - Hashmi, S. A.

AU - Kumar, Yogesh

AU - Deraman, Mohamad

AU - Omar, Ramli

AU - Jasni, M. R M

PY - 2017/2/25

Y1 - 2017/2/25

N2 - High rate performance of symmetrical electrical-double layer capacitors (EDLCs) constructed with activated graphene oxide (ac-GO)/activated reduced graphene oxide (ac-RGO) electrodes and ionic liquid (triethylsulfonium bis(trifluoromethylsulfonyl)imide, incorporated plastic crystal succinonitrile (SN) based flexible gel polymer electrolytes (GPE) have been reported. The 3D architecture with predominantly meso-porous character of the ac-RGO, in combination with SN-based high ion conducting GPE, renders it a high rate electrode with high value of knee frequency, fk (∼966 Hz), low response time τ0 (∼20 ms) and high pulse power P0 (∼111 kW kg−1) as compared to the ac-GO-electrode that exhibits the corresponding values: fk (∼215 Hz), τ0 (∼60 ms) and P0 (∼58 kW kg−1). The ac-RGO based EDLCs offer higher specific power (∼118 kW kg−1) than that for ac-GO-based EDLC (∼41 kW kg−1), as evaluated from GCD studies. However, due to the additional pseudo-capacitance arising from leftover oxygen functional groups, the ac-GO-electrodes exhibit higher values of specific capacitance and specific energy (∼88–96 F g−1 and 25 Wh kg−1, respectively) as compared to the ac-RGO based EDLCs with specific capacitance ∼66–72 F g−1 and specific energy ∼18 Wh kg−1). Both the EDLC cells exhibit stable capacitive performance up to ∼11,000–13,000 GCD cycles.

AB - High rate performance of symmetrical electrical-double layer capacitors (EDLCs) constructed with activated graphene oxide (ac-GO)/activated reduced graphene oxide (ac-RGO) electrodes and ionic liquid (triethylsulfonium bis(trifluoromethylsulfonyl)imide, incorporated plastic crystal succinonitrile (SN) based flexible gel polymer electrolytes (GPE) have been reported. The 3D architecture with predominantly meso-porous character of the ac-RGO, in combination with SN-based high ion conducting GPE, renders it a high rate electrode with high value of knee frequency, fk (∼966 Hz), low response time τ0 (∼20 ms) and high pulse power P0 (∼111 kW kg−1) as compared to the ac-GO-electrode that exhibits the corresponding values: fk (∼215 Hz), τ0 (∼60 ms) and P0 (∼58 kW kg−1). The ac-RGO based EDLCs offer higher specific power (∼118 kW kg−1) than that for ac-GO-based EDLC (∼41 kW kg−1), as evaluated from GCD studies. However, due to the additional pseudo-capacitance arising from leftover oxygen functional groups, the ac-GO-electrodes exhibit higher values of specific capacitance and specific energy (∼88–96 F g−1 and 25 Wh kg−1, respectively) as compared to the ac-RGO based EDLCs with specific capacitance ∼66–72 F g−1 and specific energy ∼18 Wh kg−1). Both the EDLC cells exhibit stable capacitive performance up to ∼11,000–13,000 GCD cycles.

KW - Activated graphene oxide

KW - Activated reduced graphene oxide

KW - Electrical-double layer capacitor

KW - Gel polymer electrolyte

KW - Ionic liquid

KW - Plastic crystal

UR - http://www.scopus.com/inward/record.url?scp=85014024442&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85014024442&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2016.12.023

DO - 10.1016/j.jallcom.2016.12.023

M3 - Article

AN - SCOPUS:85014024442

VL - 695

SP - 3376

EP - 3392

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -