Electrochemical reduction of dioxygen in Bis (trifluoromethylsulfonyl) imide based ionic liquids

Hayyan, Maan; Mjalli, Farouq S.; Hashim, Mohd Ali; AlNashef, Inas M.; Tan, Xue Mei

doi:10.1016/j.jelechem.2011.04.008

Cited by 56 publications

(64 citation statements)

References 62 publications

(94 reference statements)

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“…Latter was measured between 298 and 333 K in a dry glove box. Like Hayan et al [50] we could not find any significant change within this temperature range meaning that the expansion coefficient is negligible small. The density values shown in Table 1 represent the average of five experimental results and usually show a standard deviation of 2%.…”

Section: Methods and Validationsupporting

confidence: 54%

Multiple headspace extraction for gas detection in ionic liquids

Müller

Fühl

Pinkwart

et al. 2014

Journal of Chromatography A

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Section: Methods and Validationsupporting

confidence: 54%

Multiple headspace extraction for gas detection in ionic liquids

Müller

Fühl

Pinkwart

et al. 2014

Journal of Chromatography A

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“…ILs are generally known to possess undetectable vapour pressure, wide liquid temperature range, high solubility for many organic and inorganic compounds, and low toxicity [1][2][3]. Hence, ILs are applied in many chemical and industrial processes such as CO 2 capture [4][5][6], battery development [7,8], electrochemical applications [9] and biocatalysts [10,11], organic synthesis [12], material synthesis [13], extraction [5], and biomedical applications [5].…”

Section: Introductionmentioning

confidence: 99%

“…They are rather well studied, vastly synthesized and are widely employed in various industrial uses such as sugar industries [10], electropolishing, electroplating, metal oxide processing [9,[19][20][21] and fabrication of nanomaterial [22,23]. Study on type IV DESs (metal-based) is scarcely explored.…”

Section: Introductionmentioning

confidence: 99%

Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Kow

Sirat

2015

Chinese Chemical Letters

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“…20,21,22 The reactivity of O 2 •− with the electrolyte can even increase the specific discharge capacity of the O 2 -electrode, as was observed for alkylcarbonate based electrolytes, 24 imidazolium based ionic liquids, 23 as well as for water contaminated electrolytes; 24 this negatively affects the reversibility of the reaction. On the other hand, ionic liquids with pyrrolidinium (or piperidinium) cations and bis(trifluoromethylsulfonyl)imide (TFSI) anion 25 have been reported to be stable against O 2 •− attack, at least within the timescale of voltammetric measurements, by some research groups 20,[26][27][28][29] and among them ours. 30 Thus, because of their stability against both O 2 •− attack and anodic oxidation, the expectation for a usable electrolyte for Li-O 2 batteries was loaded on pyrrolidinium 23,31 or piperidinium 32 cations and TFSI anion; they were indeed examined in Li-O 2 test cells, but, unfortunately, only the first cycle or the first few cycles has been shown in the literature.…”

mentioning

confidence: 97%

Stability of a Pyrrolidinium-Based Ionic Liquid in Li-O₂Cells

Piana

Wandt

Meini

et al. 2014

J. Electrochem. Soc.

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The use of 1-methyl-1-butylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Pyr 14 TFSI) electrolyte in different Li-O 2 cell setups is here investigated. In a one-compartment Li-O 2 cell, the pyrrolidinium ion is reduced on metallic lithium, producing substantial amounts of alkenes and amines. To avoid this, a simple two-compartment cell is used, with propylene carbonate as anode electrolyte and a Li + -ion solid electrolyte as separator. Another explored option is the substitution of lithium in the one-compartment cell with lithiated LTO (LLTO). Unfortunately, the absence of an SEI leads to the reduction of O 2 at LLTO, making it not useful as counter electrode for Li-O 2 cell evaluation. All the configurations above are characterized by a first discharge specific capacity double than that obtained with unreactive electrolytes. The use of an edge-sealed two-compartment LLTO-Vulcan cell resulted in the usual discharge capacity of ≈200 mAh g −1 C at the first cycle, eliminating the effects of Pyr 14 TFSI reduction; nevertheless, the poor cyclability even in this cell design suggests that Pyr 14 TFSI might not have sufficient long-term stability against the attack of O 2•− during discharge or of oxygen species during charge. © The Author Ionic liquids have attracted much attention as electrolyte solutions for many electrochemical applications in the last decade, like electrochemical actuators and electrochromic windows 1 dye-sensitized solar cells 2 waste treatment, 3 supercapacitors 4 and lithium batteries. 5,6 This is due to their unique properties, like non-flammability and negligible vapor pressure, which would improve battery safety, and their low melting point and reasonably low viscosity, enabling their use as solvents even at room temperature. Another attractive property is their very high anodic electrochemical stability 7 that widens the potential window in which they can be employed in electrochemical applications. Even though their production and purification is more demanding than organic solvents due to their ionic character, they are easy to separate and recycle.All these properties made them attractive also as electrolyte solvents in the non-aqueous Li-O 2 secondary batteries, introduced by K.M. Abraham et al. in 1996. 8 Owing to the high specific capacity of the oxygen cathode of Li-O 2 batteries, their potential application for full-electric vehicles attracted much interest, promising to extend vehicle range. Their practical specific energy, including the weight of inactive electrode components and electrolyte, has been estimated in a recent review, 9 which claims a practically achievable specific energy of 1300 Wh kg −1 for Li-O 2 cells, which would be a roughly four-fold improvement over state-of-the-art Li-ion batteries. 10 It is important to note, however, that a more recent analysis of the battery-system level specific energy achievable with Li-O 2 vs. Li-ion batteries suggests that the specific energy improvement would be less than two-fold and the volumetric energy density would be infe...

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Electrochemical reduction of dioxygen in Bis (trifluoromethylsulfonyl) imide based ionic liquids

Cited by 56 publications

References 62 publications

Multiple headspace extraction for gas detection in ionic liquids

Multiple headspace extraction for gas detection in ionic liquids

Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Stability of a Pyrrolidinium-Based Ionic Liquid in Li-O₂Cells

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Electrochemical reduction of dioxygen in Bis (trifluoromethylsulfonyl) imide based ionic liquids

Cited by 56 publications

References 62 publications

Multiple headspace extraction for gas detection in ionic liquids

Multiple headspace extraction for gas detection in ionic liquids

Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Stability of a Pyrrolidinium-Based Ionic Liquid in Li-O2Cells

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Product

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Stability of a Pyrrolidinium-Based Ionic Liquid in Li-O₂Cells