Structure of [C4mpyr][NTf2] Room-Temperature Ionic Liquid at Charged Gold Interfaces
Langmuir2012Vol. 28(19), pp. 7374–7381
Citations Over TimeTop 10% of 2012 papers
Y. Lauw, Michael D. Horne, Theo Rodopoulos, Vera Lockett, Bülent Akgün, William A. Hamilton, Andrew Nelson
Abstract
The structure of 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([C(4)mpyr][NTf(2)]) room-temperature ionic liquid at an electrified gold interface was studied using neutron reflectometry, cyclic voltammetry, and differential capacitance measurements. Subtle differences were observed between the reflectivity data collected on a gold electrode at three different applied potentials. Detailed analysis of the fitted reflectivity data reveals an excess of [C(4)mpyr](+) at the interface, with the amount decreasing at increasingly positive potentials. A cation rich interface was found even at a positively charged electrode, which indicates a nonelectrostatic (specific) adsorption of [C(4)mpyr](+) onto the gold electrode.
Related Papers
- → Measurement of SO2 Solubility in Ionic Liquids(2006)316 cited
- → Neutron reflectometry, x-ray reflectometry, and spectroscopic ellipsometry characterization of thin SiO2 on Si(1998)40 cited
- → The use of X-ray and neutron reflectometry for the investigation of polymeric thin films(1991)38 cited
- → Adsorption at liquid interfaces: A comparison of multiple experimental techniques(2009)3 cited
- → A Detailed Study of the (Electro)chemical Behavior of Bis(trifluoromethanesulfonyl)imide Based Ionic Liquids at Different Purification Steps(2013)3 cited