Influence of lithium salt addition on ionic conductivity and transporting properties of lithium bis(trifluoromethanesulfonyl)imide-doped glycine-based ionic liquid electrolyte

Kuo, Chung Wen; Lin, Haibo; Kuo, Ping Lin; Chen, Pin Rong; Wu, Tzi Yi

doi:10.1016/j.jtice.2013.10.017

Cited by 9 publications

(5 citation statements)

References 45 publications

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“…The self‐diffusion coefficients of

D_{IM {CI}^{+}}

and

D_{TF {SI}^{-}}

in neat S1 and PEG200/S1 binary solutions and

D_{IMO I^{+}}

and

D_{TF {SI}^{-}}

in neat S2 and PEG200/S2 binary solutions at various temperatures can be evaluated by using the PGSE‐NMR technique . The self‐diffusion coefficient of the IMCI + and TFSI − can be determined separately by observing 1 H and 19 F nuclei, respectively; this can be attributed to the presence of protons, the absence of fluorine in the chemical structure of IMCI + , the presence of fluorine, and the absence of protons in the chemical structure of TFSI − .…”

Section: Resultsmentioning

confidence: 99%

Impact of polyethyleneglycol addition on diffusion coefficients in binary ionic liquid electrolytes composed of dicationic ionic liquid and polyethyleneglycol

Chiu

et al. 2017

Magnetic Reson in Chemistry

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We conduct a comparative study of conductivity and diffusion coefficient of two dicationic ionic liquids (3,3'-(octane-1,8-diyl)bis(1-ethyl-3-imidazolium) bis(trifluoromethylsulfonyl)amide ([IMCI][TFSI], S1) and 3,3'-(2,2'-(ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(1-ethyl-3-imidazolium) bis(trifluoromethylsulfonyl)amide ([IMOI][TFSI], S2)) at various temperatures. The diffusion coefficients of cation and anion in ionic liquids are determined by using pulse gradient spin-echo nuclear magnetic resonance method. S2 shows lower viscosity, higher conductivity, and higher diffusion coefficient than those of S1. Moreover, the influence of polyethyleneglycol (PEG200, M = 200) addition in PEG200/IL binary solutions is investigated. PEG200/S1 binary solutions show lower viscosity, higher conductivity, and higher diffusion coefficient than those of neat S1. The experimental molar conductivity (Λ) of neat IL and PEG200/IL binary solutions is lower than that of the calculated molar conductivity (Λ ) from pulse gradient spin-echo nuclear magnetic resonance method at various temperatures, indicating that not all the diffusion species belong to the ionic conduction. In other words, NMR diffusion measurements comprise charged and paired (without charge) ions. Copyright © 2017 John Wiley & Sons, Ltd.

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“…The self‐diffusion coefficients of

D_{IM {CI}^{+}}

and

D_{TF {SI}^{-}}

in neat S1 and PEG200/S1 binary solutions and

D_{IMO I^{+}}

and

D_{TF {SI}^{-}}

Section: Resultsmentioning

confidence: 99%

Impact of polyethyleneglycol addition on diffusion coefficients in binary ionic liquid electrolytes composed of dicationic ionic liquid and polyethyleneglycol

Chiu

et al. 2017

Magnetic Reson in Chemistry

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“…The purpose of this paper is to synthesize a thiomethylphenyl-based anodic polymer (PMPS) via electrochemical polymerizations and compare its spectroelectrochemical properties, coloration efficiency, electrochromic switching, and colorimetry with PMPO and PANIL. Moreover, the benefits of ionic liquids (ILs) such as non-volatility, high conductivity, and a wide potential window make them easy alternatives as stable electrolytes in electrochemical devices [24,25,26,27,28]. In this paper, ECDs were prepared using PMPS, PMPO, and PANIL as the electrochromic materials of anodic electrodes, PProDOT-Et 2 as the electrochromic material of the cathodic electrode, and an ionic liquid/polymer composite membrane as the electrochromic electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Applications of Three Dithienylpyrroles-Based Electrochromic Polymers in High-Contrast Electrochromic Devices

Chang

2017

Polymers

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Three dithienylpyrroles (1-(4-(methylthio)phenyl)-2,5-di(thiophen-2-yl)-pyrrole (MPS), 1-(4-methoxyphenyl)-2,5-di(thiophen-2-yl)-pyrrole (MPO), and 4-(2,5-di(thiophen-2-yl)-pyrrol-1-yl) benzonitrile (ANIL)) were synthesized and their corresponding polydithienylpyrroles (PSNS) were electrosynthesized using electrochemical polymerization. Spectroelectrochemical studies indicated that poly(1-(4-(methylthio)phenyl)-2,5-di(thiophen-2-yl)-pyrrole) (PMPS) film was green, dark green, and brown in the neutral, oxidation, and highly oxidized state, respectively. The incorporation of a MPS unit into the PSNS backbone gave rise to a darker color than those of the MPO and ANIL units in the highly oxidized state. The PMPS film showed higher ∆T max (54.47% at 940 nm) than those of the PMPO (43.87% at 890 nm) and PANIL (44.63% at 950 nm) films in an ionic liquid solution. Electrochromic devices (ECDs) employing PMPS, PMPO, and PANIL as anodic layers and poly(3,4-(2,2-diethypropylenedioxy)thiophene)(PProDOT-Et 2 ) as a cathodic layer were constructed. PMPO/PProDOT-Et 2 ECD showed the highest ∆T max (41.13%) and coloration efficiency (674.67 cm 2 ·C −1 ) at 626 nm, whereas PMPS/PProDOT-Et 2 ECD displayed satisfactory ∆T max (32.51%) and coloration efficiency (637.25 cm 2 ·C −1 ) at 590 nm. Repeated cyclic voltammograms of PMPS/PProDOT-Et 2 , PMPO/PProDOT-Et 2 , and PANIL/PProDOT-Et 2 ECDs indicated that ECDs had satisfactory redox stability.

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“…The inherent properties of ILs such as high conductivity, a wide potential window, and air/moisture stability make them easy alternatives as chemically mild, stable electrolytes in the development of electrochemical and electrochromic (EC) devices [37][38][39][40]. In this work, we synthesized two series of 2,5-dithienylpyrrole-based conducting polymers (P(IND-co-perylene)s and P(MDOB-co-perylene)s) via electrochemical polymerizations.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical synthesis, characterization and electrochromic properties of indan and 1,3-benzodioxole-based poly(2,5-dithienylpyrrole) derivatives

Wu¹,

Liao²,

Chen³

2014

Electrochimica Acta

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Influence of lithium salt addition on ionic conductivity and transporting properties of lithium bis(trifluoromethanesulfonyl)imide-doped glycine-based ionic liquid electrolyte

Cited by 9 publications

References 45 publications

Impact of polyethyleneglycol addition on diffusion coefficients in binary ionic liquid electrolytes composed of dicationic ionic liquid and polyethyleneglycol

Impact of polyethyleneglycol addition on diffusion coefficients in binary ionic liquid electrolytes composed of dicationic ionic liquid and polyethyleneglycol

Applications of Three Dithienylpyrroles-Based Electrochromic Polymers in High-Contrast Electrochromic Devices

Electrochemical synthesis, characterization and electrochromic properties of indan and 1,3-benzodioxole-based poly(2,5-dithienylpyrrole) derivatives

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