Industrial Applications of Ionic Liquids

Greer, Adam J.; Jacquemin, Johan; Hardacre, Christopher

doi:10.3390/molecules25215207

Cited by 374 publications

(228 citation statements)

References 156 publications

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“…They exhibit negligible volatility, high thermal and chemical stability, and high solubility towards a wide range of solutes. Due to the wide range of possible ILs, each with different chemical and physical properties, they are often described as “designer” liquids [ 3 ]. These characteristics make them potential candidates for various applications such as separation processes [ 4 ], heat transfer fluids [ 5 ], thermal energy storage [ 6 ], batteries [ 7 ], fuel cells [ 8 ], and tribology, both as lubricants [ 9 ] and lubricant additives [ 10 ], and even space technology [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Group Contribution Estimation of Ionic Liquid Melting Points: Critical Evaluation and Refinement of Existing Models

et al. 2021

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While several group contribution method (GCM) models have been developed in recent years for the prediction of ionic liquid (IL) properties, some challenges exist in their effective application. Firstly, the models have been developed and tested based on different datasets; therefore, direct comparison based on reported statistical measures is not reliable. Secondly, many of the existing models are limited in the range of ILs for which they can be used due to the lack of functional group parameters. In this paper, we examine two of the most diverse GCMs for the estimation of IL melting point; a key property in the selection and design of ILs for materials and energy applications. A comprehensive database consisting of over 1300 data points for 933 unique ILs, has been compiled and used to critically evaluate the two GCMs. One of the GCMs has been refined by introducing new functional groups and reparametrized to give improved performance for melting point estimation over a wider range of ILs. This work will aid in the targeted design of ILs for materials and energy applications.

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Section: Introductionmentioning

confidence: 99%

Group Contribution Estimation of Ionic Liquid Melting Points: Critical Evaluation and Refinement of Existing Models

et al. 2021

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“…The number of possible combinations of a cation and anion is estimated to reach 10 6 , making it theoretically possible to synthesize an IL targeted for a specific application or property [ 1 ]. ILs have been widely studied due to their unique properties, such as low flammability, negligible vapor pressure, high ionic conductivity, extensive liquid temperature range, high thermal and chemical stability, high solvation ability for organic, inorganic and organometallic compounds, selectivity and being easy recyclable through the separation from volatile compounds [ 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Due to these properties, ILs can be used in various areas from chemistry to engineering through the medical and the pharmaceutical fields, mainly as promising “green” alternatives to traditional organic solvents [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquids—A Review of Their Toxicity to Living Organisms

Gonçalves

Paredes

Cristino

et al. 2021

IJMS

128

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Ionic liquids (ILs) were initially hailed as a green alternative to traditional solvents because of their almost non-existent vapor pressure as ecological replacement of most common volatile solvents in industrial processes for their damaging effects on the environment. It is common knowledge that they are not as green as desired, and more thought must be put into the biological consequences of their industrial use. Still, compared to the amount of research studying their physicochemical properties and potential applications in different areas, there is a scarcity of scientific papers regarding how these substances interact with different organisms. The intent of this review was to compile the information published in this area since 2015 to allow the reader to better understand how, for example, bacteria, plants, fish, etc., react to the presence of this family of liquids. In general, lipophilicity is one of the main drivers of toxicity and thus the type of cation. The anion tends to play a minor (but not negligible) role, but more research is needed since, owing to the very nature of ILs, except for the most common ones (imidazolium and ammonium-based), many of them are subject to only one or two articles.

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“…To overcome such drawbacks, a lot of research interest in the last few decades has been devoted to ionic liquids for next-generation EES device application due to low volatility, non-toxicity, non-flammability, good electrochemical stability (up to 6.0 V), good thermal stability (≥60 °C), and excellent long cyclic stability [ 31 , 32 , 33 ]. Figure 2 shows that almost 71,000 research papers have already been published in the last ten years from 2010 to May 2021 (all data are recorded from “Scopus” up to 22nd of May 2021) [ 1 , 34 , 35 , 36 ]. The low ionic conductivity for room temperature ionic liquids (RTILs) is one of the major challenges for market applications.…”

Section: Introductionmentioning

confidence: 99%

Application of Ionic Liquids for Batteries and Supercapacitors

2021

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Nowadays, the rapid development and demand of high-performance, lightweight, low cost, portable/wearable electronic devices in electrical vehicles, aerospace, medical systems, etc., strongly motivates researchers towards advanced electrochemical energy storage (EES) devices and technologies. The electrolyte is also one of the most significant components of EES devices, such as batteries and supercapacitors. In addition to rapid ion transport and the stable electrochemical performance of electrolytes, great efforts are required to overcome safety issues due to flammability, leakage and thermal instability. A lot of research has already been completed on solid polymer electrolytes, but they are still lagging for practical application. Over the past few decades, ionic liquids (ILs) as electrolytes have been of considerable interest in Li-ion batteries and supercapacitor applications and could be an important way to make breakthroughs for the next-generation EES systems. The high ionic conductivity, low melting point (lower than 100 °C), wide electrochemical potential window (up to 5–6 V vs. Li+/Li), good thermal stability, non-flammability, low volatility due to cation–anion combinations and the promising self-healing ability of ILs make them superior as “green” solvents for industrial EES applications. In this short review, we try to provide an overview of the recent research on ILs electrolytes, their advantages and challenges for next-generation Li-ion battery and supercapacitor applications.

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Industrial Applications of Ionic Liquids

Cited by 374 publications

References 156 publications

Group Contribution Estimation of Ionic Liquid Melting Points: Critical Evaluation and Refinement of Existing Models

Group Contribution Estimation of Ionic Liquid Melting Points: Critical Evaluation and Refinement of Existing Models

Ionic Liquids—A Review of Their Toxicity to Living Organisms

Application of Ionic Liquids for Batteries and Supercapacitors

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