Ionic liquids containing 1,1-dicyano-1-acetylmethanide anion as potential electrolytes

Haryo Pandu Winoto; Shalu Agarwal; Jin Kyu Im; Minserk Cheong; Je Seung Lee

doi:10.5012/bkcs.2012.33.9.2999

Ionic liquids containing 1,1-dicyano-1-acetylmethanide anion as potential electrolytes

Haryo Pandu Winoto
, Shalu Agarwal
, Jin Kyu Im
, Minserk Cheong
, Je Seung Lee

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

1 Citation (Scopus)

Abstract

Various types of room temperature ionic liquids (RTILs) containing 1,1-dicyano-1-acetylmethanide anion ([C(CN) ₂(COCH ₃)] ^-, [DCNAcC] ^-) were prepared and their physical and electrochemical properties were studied. All of these ILs exhibited high thermal stabilities over 200 °C and relatively high ionic conductivities up to 29.4 mS cm ^-1 at 80 °C. Although the ionic conductivity of IL containing bis(trifluoromethanesulfonyl)- imide ([Tf ₂N] ^-) anion is higher than that of ILs bearing [DCNAcC] ^- anion, the specific capacitance of ILs bearing [DCNAcC] ^- anion are higher than that of IL containing [Tf ₂N]- anion and showed high temperature dependence. Such favorable electrochemical properties of these ILs are likely to be attributed to the efficient dissociation of cation and anion at higher temperature and enhanced electrosorption of [DCNAcC] ^- anion at the electrode.

Original language	English
Pages (from-to)	2999-3003
Number of pages	5
Journal	Bulletin of the Korean Chemical Society
Volume	33
Issue number	9
DOIs	https://doi.org/10.5012/bkcs.2012.33.9.2999
Publication status	Published - 20 Sept 2012

Keywords

Electrolyte
Ionic conductivity
Ionic liquid
Specific capacitance

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10.5012/bkcs.2012.33.9.2999

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title = "Ionic liquids containing 1,1-dicyano-1-acetylmethanide anion as potential electrolytes",

abstract = "Various types of room temperature ionic liquids (RTILs) containing 1,1-dicyano-1-acetylmethanide anion ([C(CN) 2(COCH 3)] -, [DCNAcC] -) were prepared and their physical and electrochemical properties were studied. All of these ILs exhibited high thermal stabilities over 200 °C and relatively high ionic conductivities up to 29.4 mS cm -1 at 80 °C. Although the ionic conductivity of IL containing bis(trifluoromethanesulfonyl)- imide ([Tf 2N] -) anion is higher than that of ILs bearing [DCNAcC] - anion, the specific capacitance of ILs bearing [DCNAcC] - anion are higher than that of IL containing [Tf 2N]- anion and showed high temperature dependence. Such favorable electrochemical properties of these ILs are likely to be attributed to the efficient dissociation of cation and anion at higher temperature and enhanced electrosorption of [DCNAcC] - anion at the electrode.",

keywords = "Electrolyte, Ionic conductivity, Ionic liquid, Specific capacitance",

author = "Winoto, \{Haryo Pandu\} and Shalu Agarwal and Im, \{Jin Kyu\} and Minserk Cheong and Lee, \{Je Seung\}",

year = "2012",

month = sep,

day = "20",

doi = "10.5012/bkcs.2012.33.9.2999",

language = "English",

volume = "33",

pages = "2999--3003",

journal = "Bulletin of the Korean Chemical Society",

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TY - JOUR

T1 - Ionic liquids containing 1,1-dicyano-1-acetylmethanide anion as potential electrolytes

AU - Winoto, Haryo Pandu

AU - Agarwal, Shalu

AU - Im, Jin Kyu

AU - Cheong, Minserk

AU - Lee, Je Seung

PY - 2012/9/20

Y1 - 2012/9/20

N2 - Various types of room temperature ionic liquids (RTILs) containing 1,1-dicyano-1-acetylmethanide anion ([C(CN) 2(COCH 3)] -, [DCNAcC] -) were prepared and their physical and electrochemical properties were studied. All of these ILs exhibited high thermal stabilities over 200 °C and relatively high ionic conductivities up to 29.4 mS cm -1 at 80 °C. Although the ionic conductivity of IL containing bis(trifluoromethanesulfonyl)- imide ([Tf 2N] -) anion is higher than that of ILs bearing [DCNAcC] - anion, the specific capacitance of ILs bearing [DCNAcC] - anion are higher than that of IL containing [Tf 2N]- anion and showed high temperature dependence. Such favorable electrochemical properties of these ILs are likely to be attributed to the efficient dissociation of cation and anion at higher temperature and enhanced electrosorption of [DCNAcC] - anion at the electrode.

AB - Various types of room temperature ionic liquids (RTILs) containing 1,1-dicyano-1-acetylmethanide anion ([C(CN) 2(COCH 3)] -, [DCNAcC] -) were prepared and their physical and electrochemical properties were studied. All of these ILs exhibited high thermal stabilities over 200 °C and relatively high ionic conductivities up to 29.4 mS cm -1 at 80 °C. Although the ionic conductivity of IL containing bis(trifluoromethanesulfonyl)- imide ([Tf 2N] -) anion is higher than that of ILs bearing [DCNAcC] - anion, the specific capacitance of ILs bearing [DCNAcC] - anion are higher than that of IL containing [Tf 2N]- anion and showed high temperature dependence. Such favorable electrochemical properties of these ILs are likely to be attributed to the efficient dissociation of cation and anion at higher temperature and enhanced electrosorption of [DCNAcC] - anion at the electrode.

KW - Electrolyte

KW - Ionic conductivity

KW - Ionic liquid

KW - Specific capacitance

UR - https://www.scopus.com/pages/publications/84866421131

U2 - 10.5012/bkcs.2012.33.9.2999

DO - 10.5012/bkcs.2012.33.9.2999

M3 - Article

AN - SCOPUS:84866421131

SN - 0253-2964

VL - 33

SP - 2999

EP - 3003

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

IS - 9

ER -

Ionic liquids containing 1,1-dicyano-1-acetylmethanide anion as potential electrolytes

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Keywords

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