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

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

Citing Articles

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

Ueda H, Yoshimoto S Data Brief. 2021; 39:107585.

PMID: 34917698 PMC: 8645453. DOI: 10.1016/j.dib.2021.107585.

References

1.

Ueda H, Nishiyama K, Yoshimoto S . Dependence of cobaltocenium diffusion in ionic liquids on the alkyl chain length of 1-alkyl-3-methylimidazolium cations. Phys Chem Chem Phys. 2016; 18(5):3558-66. DOI: 10.1039/c5cp06542a. View

2.

Atkin R, Borisenko N, Druschler M, Zein el-Abedin S, Endres F, Hayes R . An in situ STM/AFM and impedance spectroscopy study of the extremely pure 1-butyl-1-methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate/Au(111) interface: potential dependent solvation layers and the herringbone reconstruction. Phys Chem Chem Phys. 2011; 13(15):6849-57. DOI: 10.1039/c0cp02846k. View

3.

Xue Z, Qin L, Jiang J, Mu T, Gao G . Thermal, electrochemical and radiolytic stabilities of ionic liquids. Phys Chem Chem Phys. 2018; 20(13):8382-8402. DOI: 10.1039/c7cp07483b. View

4.

Ueda H, Yoshimura T, Nishiyama K, Yoshimoto S . Dependence of the Electrochemical Redox Properties of Fullerenes on Ionic Liquids. Langmuir. 2017; 33(47):13468-13479. DOI: 10.1021/acs.langmuir.7b03076. View

5.

Wang Z, Lin P, Baker G, Stetter J, Zeng X . Ionic liquids as electrolytes for the development of a robust amperometric oxygen sensor. Anal Chem. 2011; 83(18):7066-73. DOI: 10.1021/ac201235w. View

Dataset of the Electrochemical Potential Windows for the Au()|ionic Liquid Interfaces Defined by the Cut-off Current Densities