Rationale for the implementation of reference electrodes in ionic liquids

2016 ◽  
Vol 18 (11) ◽  
pp. 8148-8157 ◽  
Author(s):  
C. Bonnaud ◽  
I. Billard ◽  
N. Papaiconomou ◽  
E. Chainet ◽  
J. C. Leprêtre
Keyword(s):  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Media ◽  
Reference Electrodes ◽  
The Stability

A comparison between quasi-reference and reference electrodes was carried out in ionic liquid media by cyclic voltammetry. The stability and the reliability of these reference electrodes are discussed.

scholarly journals Mechanical and Electrical Performance of Flexible Polymer Film Designed for a Textile Electrically-Conductive Path

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2169
Author(s):  
Agnieszka Tabaczyńska ◽  
Anna Dąbrowska ◽  
Marcin Masłowski ◽  
Anna Strąkowska
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Surface Resistance ◽  
Conductive Filler ◽  
Extrusion Process ◽  
Electrical Performance ◽  
Electrically Conductive ◽  
Non Invasive ◽  
Flexible Polymer ◽  
The Stability

Electro-conductive paths that are mechanically resistant and stable during simulated aging cycles are promising, in relation to the non-invasive application in e-textiles in our everyday surroundings. In the paper, an analysis of the influence of electro-conductive filler, as well as ionic liquid on surface resistance is provided. Authors proved that depending on the tested variant, obtained surface resistance may vary from 50 kΩ (when 50 phr of Ag and [bmim][PF6] ionic liquid applied) to 26 GΩ (when 25 phr of Ag and [bmim][PF6] ionic liquid applied). The samples were also evaluated after simulated aging cycles and the stability of electric properties was confirmed. Moreover, it was proved that the addition of ionic liquids reduced the resistance of vulcanizates, while no significant influence of the extrusion process on conductivity was observed.

Shifting the equilibrium of methanol synthesis from CO2 by in situ absorption using ionic liquid media

2019 ◽  
Vol 3 (12) ◽  
pp. 3399-3405
Author(s):  
Jenny Reichert ◽  
Stephanie Maerten ◽  
Katharina Meltzer ◽  
Alexander Tremel ◽  
Manfred Baldauf ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Methanol Synthesis ◽  
Liquid Media ◽  
Alkali Salt ◽  
In Situ Absorption

A promising way to increase the methanol yields in CO2 hydrogenation significantly up to 60% by in situ sorption of methanol and water in alkali salt-doped ionic liquids (ILs) is demonstrated.

scholarly journals Metal-Catalyzed Degradation of Cellulose in Ionic Liquid Media

Inorganics ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 78 ◽  
Author(s):  
Tiina Aid ◽  
Mihkel Koel ◽  
Margus Lopp ◽  
Merike Vaher
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Molybdenum Oxide ◽  
Cellulose Degradation ◽  
Biomass Conversion ◽  
Reaction Medium ◽  
Good Activity ◽  
Industrial Chemicals ◽  
Liquid Media ◽  
Metal Catalyzed

Biomass conversion to 5-hydroxymethylfurfural (HMF) has been widely investigated as a sustainable alternative to petroleum-based feedstock, since it can be efficiently converted to fuel, plastic, polyester, and other industrial chemicals. In this report, the degradation of commercial cellulose, the isomerization of glucose to fructose, and the conversion of glucose to HMF in 1-butyl-3-methylimidazolium chloride ([BMIM]Cl]) using metal catalysts (CrCl3, ZnCl2, MgCl2) as well as tungsten and molybdenum oxide-based polyoxometalates (POM) were investigated. Tungsten and molybdenum oxide-based POMs in ionic liquids (IL) were able to degrade cellulose to majority glucose and epimerize glucose to mannose (in the case of the molybdenum oxide-based POM). A certain amount of glucose was also converted to HMF. The tungsten oxide-based POM in IL showed good activity for cellulose degradation but the overall products yield remained 28.6% lower than those obtained using CrCl3 as a catalyst. Lowering the cellulose loading did not significantly influence the results and the addition of water to the reaction medium decreased the product yields remarkably.

Unusual electrochemical behaviour of AuBr4− in ionic liquids. Towards a simple recovery of gold(iii) after extraction into an ionic liquid

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 58910-58915 ◽  
Author(s):  
Nicolas Papaiconomou ◽  
Nicolas Glandut ◽  
Isabelle Billard ◽  
Eric Chainet
Keyword(s):  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Glassy Carbon ◽  
Electrochemical Behaviour ◽  
Linear Voltammetry

The electrochemistry of AuBr4− complexes extracted into ionic liquids [C8PYR][NTf2] or [C8MIM][NTf2] saturated with water and gas has been studied by cyclic voltammetry on a glassy carbon macro electrode and by linear voltammetry on a platinum microelectrode.

scholarly journals First direct evidence of N-heterocyclic carbene in BMIm acetate ionic liquids. An electrochemical and chemical study on the role of temperature

2017 ◽  
Vol 41 (16) ◽  
pp. 7840-7843 ◽  
Author(s):  
I. Chiarotto ◽  
M. Feroci ◽  
A. Inesi
Keyword(s):  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Direct Evidence ◽  
Chemical Study

Cyclic voltammetry measurements provide the first direct evidence of N-heterocyclic carbene in neat 1-butyl-3-methylimidazolium acetate ionic liquid at temperatures over 120 °C.

scholarly journals Computational approaches to understanding reaction outcomes of organic processes in ionic liquids

RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 35709-35729 ◽  
Author(s):  
Sinead T. Keaveney ◽  
Jason B. Harper ◽  
Anna K. Croft
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Case Studies ◽  
Computational Approach ◽  
Liquid Media ◽  
Computational Approaches

The utility of using a combined experimental and computational approach for understanding ionic liquid media, and their effect on reaction outcome, is highlighted through a number of case studies.

The Use of Deep Eutectic Solvents Ionic Liquids for Selective Dissolution and Recovery of Sn, Pb and Zn from Electric and Electronic Waste (WEEE)

2017 ◽  
Vol 68 (9) ◽  
pp. 1963-1968
Author(s):  
Ana Maria Popescu ◽  
Cristina Donath ◽  
Elena Ionela Neacsu ◽  
Vasile Soare ◽  
Ionut Constantin ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Anodic Dissolution ◽  
Electronic Waste ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Selective Dissolution ◽  
Cathodic Deposition ◽  
Structure And Morphology

The recovery of metals from a multi-component alloy obtained by crushing, melting and anodic dissolution of waste electric and electronic equipment (WEEE) has been investigated. The aim of this paper is to selective recover of Sn, Pb and Zn by a novel ecological technology using ionic liquids. Metallic Sn, Pn and Zn were electrochemically recovered from the WEEE dissolved in choline chloride-ethylene glycol-iodine ionic liquid. Cyclic voltammetry was used in order to determine the deposition potentials of the studied metals. XRD and SEM/EDX analysis methods were used to characterize the structure and morphology of the metallic deposits. Evolution of the cathodic deposition and of the chemical composition of the anode during the anodic dissolution process for Sn, Pb and Zn was also studied. This study has demonstrated the possibility of selective recovery of Sn, Pb and Zn from the multi-component alloy (which resulted from consecutive anodic dissolution of WEEE) by anodic dissolution/deposition in ionic liquids.

scholarly journals Enhancing the stability of ionic liquid media for cellulose processing: acetal protection or carbene suppression?

2016 ◽  
Vol 18 (13) ◽  
pp. 3758-3766 ◽  
Author(s):  
Matthew T. Clough ◽  
Jeraime A. Griffith ◽  
Olga Kuzmina ◽  
Tom Welton
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Donor ◽  
Liquid Media ◽  
Cellulose Solvent ◽  
The Stability

The recyclability of an ionic liquid-based cellulose solvent is bolstered by the inclusion of a benign hydrogen-donor co-solvent, e.g. glycerol.

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