The influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide

Randström, Sara; Appetecchi, Giovanni Battista; Lagergren, Carina; Moreno, Anna Maria Coves; Passerini, Stefano

doi:10.1016/j.electacta.2007.08.029

Cited by 87 publications

(66 citation statements)

References 29 publications

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“…PYR 14 TFSI is an air-stable, hydrophobic IL with a very good thermal stability (up to 3501C), a conductivity and a viscosity of, respectively, 1.85 ms cm À1 and 95 Pa s, at 201C, that are comparable with that of many conventional lithium batteries organic solvents. In addition, it displays a cathodic stability window extending below the lithium plating/stripping potential and an overall stability window exceeding 5.5 V [25]. Of course, these properties make this IL as a very promising electrolyte candidate for lithium metal batteries and polymer electrolytes based on PYR 14 TFSI have been already proposed and developed [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 97%

“…An example of this type of IL is the N-butyl-N-methyl-pyrrolidinium bis(trifluoromethansulfonyl)imide (PYR 14 TFSI) that has been already widely investigated [24][25][26]. PYR 14 TFSI is an air-stable, hydrophobic IL with a very good thermal stability (up to 3501C), a conductivity and a viscosity of, respectively, 1.85 ms cm À1 and 95 Pa s, at 201C, that are comparable with that of many conventional lithium batteries organic solvents.…”

Section: Introductionmentioning

confidence: 99%

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Li-ion anodes in air-stable and hydrophobic ionic liquid-based electrolyte for safer and greener batteries

Lux¹,

Schmuck²,

Jeong³

et al. 2009

Int. J. Energy Res.

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SUMMARYIn this paper we report on the use of the ionic liquid N-butyl-N-methylpyrrolidinium bis(trifluoromethansulfonyl)imide, PYR 14 TFSI, in combination with a graphite and silicon electrodes at room temperature. The performance of the investigated electrodes has been considered in terms of specific capacity, cycling efficiency and cycling stability. The influence of two different binders on the performance of graphite electrode has also been considered. The results show that in electrolytic solutions based on PYR 14 TFSI the addition of an electrolyte additive is necessary for the formation of the solid electrolyte interphase (SEI). The reported results show also that the selection of the binder is important for the increase of the performance in graphite electrodes. Finally, the comparison of the performance of the investigated electrodes showed that silicon electrodes display higher compatibility with PYR 14 TFSI with respect to graphite electrodes.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Li-ion anodes in air-stable and hydrophobic ionic liquid-based electrolyte for safer and greener batteries

Lux¹,

Schmuck²,

Jeong³

et al. 2009

Int. J. Energy Res.

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“…Although some ILs have been reported to show high stability only in a vacuum and under argon flow. [17] RTILs are generally considered as green solvents and are applied in many chemical reactions including catalysis, as well as in chemical industry as reaction solvents, [18,19] extraction solvents, [20,21] electrolytic materials, [22] etc. It is known that the physicochemical properties of ionic liquids (ILs) can be tuned by varying the chemical nature of their counter ions.…”

Section: Introductionmentioning

confidence: 99%

Novel Ascorbic Acid Based Ionic Liquids for the In Situ Synthesis of Quasi‐Spherical and Anisotropic Gold Nanostructures in Aqueous Medium

Dinda

Kotal

et al. 2008

Chemistry A European J

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A series of newly designed ascorbic acid based room temperature ionic liquids were successfully used to prepare quasi-spherical and anisotropic gold nanostructures in an aqueous medium at ambient temperature. The synthesis of these room temperature ionic liquids involves, first, the preparation of a 1-alkyl (such as methyl, ethyl, butyl, hexyl, octyl, and decyl) derivative of 3-methylimidazolium hydroxide followed by the neutralization of the derivatised product with ascorbic acid. These ionic liquids show significantly better thermal stability and their glass transition temperature (Tg) decreases with increasing alkyl chain length. The ascorbate counter anion of these ionic liquids acts as a reducing agent for HAuCl4 to produce metallic gold and the alkylated imidazolium counter cation acts as a capping/shape-directing agent. It has been found that the nature of the ionic liquids and the mole ratio of ionic liquid to HAuCl4 has a significant effect on the morphology of the formed gold nanostructures. If an equimolar mixture of ionic liquid and HAuCl4 is used, predominantly anisotropic gold nanostructures are formed and by varying the alkyl chain length attached to imidazolium cation of the ionic liquids, various particle morphologies can formed, such as quasispherical, raspberry-like, flakes or dendritic. A probable formation mechanism for such anisotropic gold nanostructures has been proposed, which is based on the results of some control experiments.

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“…To check further whether this peak is due to moister, we deliberately added water (0.22 M) with RTIL containing NM-2, we observed a 50 % decrease in this CV peak current (not shown) along with peak shifting towards negative potential (À 1.69 V) probably due to the reaction of water with NM-2. However, again we deliberately added water (0.22 M) to blank RTIL, we observed four peaks in the forward scan at À 0.1 V (27 mA), À 0.55 V (33 mA), À 1.5 V (23 mA) and a peak starting from À 1.89 V and this peak extended up to À 0.2 V with a peak current of 85 mA (Figure 2Bb) and this may be due to the reduction of water as reported earlier in RTILs [30,31]. Moreover, in the reverse scan two peaks are observed at À 0.5 V and À 1.0 V, this may be due to the oxidation of reduced species in the forward scan.…”

Section: Reduction Of Nm-2mentioning

confidence: 61%

Ionic Liquid as an Alternative Greener Sensing Medium for the Chemical Warfare Agent

et al. 2010

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Greener electrochemical detection method developed for chemical warfare agent (CWA) nitrogen mustard-2 (NM-2) using room temperature ionic liquid (RTIL). The diffusion coefficient calculated for NM-2 in acetonitrile and RTIL was 1.57 Â 10 À4 cm 2 /s and 1.82 Â 10 À10 cm 2 /s, respectively. NM-2 addition to RTIL enhanced RTIL conductivity. Moreover, heterogeneous rate constant (0.192 s À1 ), transfer coefficient (0.231) and the number of electron involved (1.0) were deduced for NM-2 in RTIL. The calibration plot showed linearity between 2.94 Â 10 À5 and 1.17 Â 10 À3 M with detection limit 1.47 Â 10 À5 M (S/N ¼ 3). The large number of available RTIL can be used for greener detection of toxic CWAs.

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The influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide

Cited by 87 publications

References 29 publications

Li-ion anodes in air-stable and hydrophobic ionic liquid-based electrolyte for safer and greener batteries

Li-ion anodes in air-stable and hydrophobic ionic liquid-based electrolyte for safer and greener batteries

Novel Ascorbic Acid Based Ionic Liquids for the In Situ Synthesis of Quasi‐Spherical and Anisotropic Gold Nanostructures in Aqueous Medium

Ionic Liquid as an Alternative Greener Sensing Medium for the Chemical Warfare Agent

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