Dependence of cobaltocenium diffusion in ionic liquids on the alkyl chain length of 1-alkyl-3-methylimidazolium cations

Ueda, Hiroyuki; Nishiyama, Katshuhiko

doi:10.1039/c5cp06542a

Cited by 10 publications

(4 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table compiles densities of some common ILs with linear alkyl groups and various anions around 293.15 K found in the literature − for comparisons with data obtained in this work. In general, the densities of the new ILs presented in this work do not exceed either the upper or lower limits of common ILs.…”

Section: Resultsmentioning

confidence: 88%

Properties of Imidazolium Ionic Liquids with Glycerol-Derived Functional Groups

et al. 2022

View full text Add to dashboard Cite

The selection of functional groups at the N(1) and N(3) sites of the imidazolium cation provides versatile opportunities for the design and synthesis of novel ionic liquids (ILs). Here, we show how glycerol-derived ethers provide new possibilities for the introduction of highly tailored, branched functional groups and how the selection of symmetric or asymmetric branches influences the properties of the resultant 1-R-3-methylimidazolium bistriflimide ILs. The densities and viscosities of these ILs were measured in the temperature range of 293.15−353.15 K and compared with those of the analogous 1-n-alkyl-3-methylimidazolium ILs. The temperature dependence of corresponding properties was elucidated using either linear or exponential models. Furthermore, CO 2 absorption isotherms were obtained for one of the ILs, 1-(1-(2-methoxyethoxy)-3-(2,2,2-trifluoroethoxy)propan-2-yl)-3-methyl-imidazolium bistriflimide ([(ME, F)-mim]-[Tf 2 N]). This IL had a higher CO 2 capacity than most physical solvents considered including its associated precursor, other imidazolium ILs, and DMPEG.

show abstract

Section: Resultsmentioning

confidence: 88%

Properties of Imidazolium Ionic Liquids with Glycerol-Derived Functional Groups

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The potential values of LSV were referenced to the redox potential of 2 mM ferrocene (Fc) in the corresponding IL, as recommended by IUPAC [16] . The Fc/Fc + redox couple has been used widely to characterize ILs [17] , [18] , [19] , [20] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Dataset of the electrochemical potential windows for the Au(hkl)|ionic liquid interfaces defined by the cut-off current densities

Ueda

2021

Data in Brief

Self Cite

View full text Add to dashboard Cite

This data article describes the linear sweep voltammetry (LSV) profiles of five ionic liquids (ILs) at the low-index ( hkl ) ( hkl = 111, 100, and 110) planes of Au. The LSV profiles were recorded at 25 ± 1°C for the Au( hkl )|IL interfaces maintained in a hanging meniscus configuration in an inert Ar atmosphere (with H 2 O and O 2 concentrations being lower than 5 ppm). The width of the electrical double-layer regions ( E dl ) and the electrochemical potential windows ( E pw ) of the ILs were evaluated based on the cut-off current densities ( j cut-off ): ±5, ±10, and ±20 µA cm –2 for E dl and ±0.1, ±0.5, and ±1.0 mA cm –2 for E pw . The potential values were calibrated to the redox potential of ferrocene/ferrocenium in each IL. A detailed discussion on the electrochemical behaviors of the ILs on Au( hkl ) is provided in the related article “Voltammetric Investigation of Anodic and Cathodic Processes at Au( hkl )|Ionic Liquid Interfaces”, published in the Journal of Electroanalytical Chemistry (Ueda and Yoshimoto, 2021).

show abstract

“…A larger cation tends to provide C 60 thin films with higher electrochemical stability, [96] but a slower restructuring in the films is expected. This is due to an increase in viscosity of the medium as a result of an increase in alkyl chain length of the cation [97] . Therefore, the suitable electrolyte needs to be balanced with its E pw , stability of films, and reaction kinetics.…”

Section: Electrochemistry Of Cxhy Molecules As Adsorbed Speciesmentioning

confidence: 99%

Multi‐Redox Active Carbons and Hydrocarbons: Control of their Redox Properties and Potential Applications

Ueda

2021

The Chemical Record

Self Cite

View full text Add to dashboard Cite

Precise control over redox properties is essential for high‐performance organic electronic devices such as organic batteries, electrochromic devices, and information storage devices. In this context, multi‐redox active carbons and hydrocarbons, represented as CxHy molecules (x≥1, y≥0), are highly sought after, because they can switch between multiple redox states. Herein, we outline the redox properties of CxHy molecules as solutes and adsorbed species. Furthermore, the limitations of evaluating their redox properties and the possible solutions are summarized. Additionally, the theoretical capacity (mAh/g) and gravimetric energy density (Wh/kg) of secondary batteries were estimated based on the redox properties of 185 CxHy molecules, which have primarily been reported in the last decade. Among them, seven CxHy molecules were found to have the potential to surpass the energy density of LiNi0.6Mn0.2Co0.2O2/graphite batteries. The use of CxHy molecules in multielectrochromic devices and multi‐bit memory is also explained. We believe that this review will encourage further utilization of CxHy molecules thereby promoting its applications in organic electronic devices.

show abstract

Dependence of cobaltocenium diffusion in ionic liquids on the alkyl chain length of 1-alkyl-3-methylimidazolium cations

Cited by 10 publications

References 47 publications

Properties of Imidazolium Ionic Liquids with Glycerol-Derived Functional Groups

Properties of Imidazolium Ionic Liquids with Glycerol-Derived Functional Groups

Dataset of the electrochemical potential windows for the Au(hkl)|ionic liquid interfaces defined by the cut-off current densities

Multi‐Redox Active Carbons and Hydrocarbons: Control of their Redox Properties and Potential Applications

Contact Info

Product

Resources

About