Use of ionic liquids in electrochemical sensors

Galal, Ahmed M.

doi:10.1016/b978-0-12-823334-4.00013-8

Cited by 4 publications

(3 citation statements)

References 65 publications

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“…Ionic liquids (ILs) possess many unique properties, including nonvolatility, high thermal stability, environmental friendliness, etc., and have been widely used in green chemistry, , electrochemistry, , catalysis, and separations . In practical applications, many nanoconfined spaces constructed by porous materials or two-dimensional materials exist, such as supported IL layers in porous silica substrates, confined ILs in graphene oxides (GO) as gas separation membranes, , preintercalated ILs in molybdenum disulfide (MoS 2 ) as the electrode, , and so on.…”

Section: Introductionmentioning

confidence: 99%

Interface Parallel Ionic Conformation Enhances the Nanoflow of Ionic Liquids Confined in the Silica Nanochannel

Qin,

Wang,

Huo

et al. 2023

Ind. Eng. Chem. Res.

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Section: Introductionmentioning

confidence: 99%

Interface Parallel Ionic Conformation Enhances the Nanoflow of Ionic Liquids Confined in the Silica Nanochannel

Qin,

Wang,

Huo

et al. 2023

Ind. Eng. Chem. Res.

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“…The improvement in ILs over the generations made it possible to develop compounds with electrical conductivity (0.1–20 mS [ 14 ]) and electrochemical stability (potential window ≤ 5.0 V [ 15 , 16 ]) uncommon in conventional electrolytes. Consequently, the electrochemical applications of these materials have grown dynamically and intensely in recent decades, showing usefulness in electrosynthesis [ 17 ], electrocatalysis [ 15 ], CO 2 capture and reduction [ 18 , 19 ], solid-state electrolytes [ 17 ], corrosion inhibitors [ 20 ], batteries, supercapacitors, fuel cells, (bio)sensors [ 3 , 7 , 10 ], among other cutting-edge technology systems. For electrochemical (bio)sensors, important advances have been made in designing, developing, and implementing devices and methods that reduce or eliminate hazardous chemicals in the environment.…”

Section: Introductionmentioning

confidence: 99%

“…In the electrochemistry field, some sophisticated and innovative ideas are compiled in Figure 1. The electrochemical properties of ILs had already provoked curiosity since the first literary record published by Paul Walden in 1914 [6,7], reporting on the peculiar conductive features of ethylammonium nitrate as a "molten salt" (12 °C melting point), though without the current repercussions. The fast diffusion of ILs in this and other areas has accompanied the improvement in their functionalities over the years.…”

Section: Introductionmentioning

confidence: 99%

(Bio)Sensing Strategies Based on Ionic Liquid-Functionalized Carbon Nanocomposites for Pharmaceuticals: Towards Greener Electrochemical Tools

et al. 2022

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The interaction of carbon-based nanomaterials and ionic liquids (ILs) has been thoroughly exploited for diverse electroanalytical solutions since the first report in 2003. This combination, either through covalent or non-covalent functionalization, takes advantage of the unique characteristics inherent to each material, resulting in synergistic effects that are conferred to the electrochemical (bio)sensing system. From one side, carbon nanomaterials offer miniaturization capacity with enhanced electron transfer rates at a reduced cost, whereas from the other side, ILs contribute as ecological dispersing media for the nanostructures, improving conductivity and biocompatibility. The present review focuses on the use of this interesting type of nanocomposites for the development of (bio)sensors specifically for pharmaceutical detection, with emphasis on the analytical (bio)sensing features. The literature search displayed the conjugation of more than 20 different ILs and several carbon nanomaterials (MWCNT, SWCNT, graphene, carbon nanofibers, fullerene, and carbon quantum dots, among others) that were applied for a large set (about 60) of pharmaceutical compounds. This great variability causes a straightforward comparison between sensors to be a challenging task. Undoubtedly, electrochemical sensors based on the conjugation of carbon nanomaterials with ILs can potentially be established as sustainable analytical tools and viable alternatives to more traditional methods, especially concerning in situ environmental analysis.

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An overview of the ionic liquids and their hybrids operating in electrochemical cells and capacitors

Pereira,

Souza,

Moreira

et al. 2024

Ionics

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The present work of review is focused on the recent advancements regarding the exploration of the ionic liquids, ionic liquids with the incorporation of nanoparticles of several materials, and ionic liquid-grafted nanoparticles operating as liquid electrodes in electrochemical cells and capacitors. The ionic liquids are generally synthesized at room temperature and by adding a solution, which can be an acid, a base, or a salt in water, and are composed of organic cations and a great number of charge-delocalized organic/inorganic anions. The electrochemical features such as the electrical conductivity and capacitance of the promising ionic liquids and their hybrids are addressed thoroughly, together with their influencing factors like the nature, concentration, and functionalization of the nanoparticles, type of base fluids, working temperature, and addition of surfactants. Moreover, this overview identifies and discusses the main applications of ionic liquids and their hybrids with nanoparticles in various possible electrochemical device configurations, along with a brief evaluation of the associated feasibility issues. Additionally, this survey of the published scientific papers on the subject enabled the listing and evaluation of the beneficial features related to the usage of these fluids including enhanced electrical conductivity and improved capacitance in comparison with the commonly employed solvents and electrolytes. Finally, it addresses the main problems associated with such types of fluids and outlines the primary prospects for further research and use of ionic liquids and their nanocomposites in different electrochemical technological applications.

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Use of ionic liquids in electrochemical sensors

Cited by 4 publications

References 65 publications

Interface Parallel Ionic Conformation Enhances the Nanoflow of Ionic Liquids Confined in the Silica Nanochannel

Interface Parallel Ionic Conformation Enhances the Nanoflow of Ionic Liquids Confined in the Silica Nanochannel

(Bio)Sensing Strategies Based on Ionic Liquid-Functionalized Carbon Nanocomposites for Pharmaceuticals: Towards Greener Electrochemical Tools

An overview of the ionic liquids and their hybrids operating in electrochemical cells and capacitors

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