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Title: Structure of [C4mpyr][NTf2] Room-Temperature Ionic Liquid at Charged Gold Interfaces
Authors: Lauw, Y
Horne, MD
Rodopoulos, T
Lockett, V
Akgun, B
Hamilton, WA
Nelson, ARJ
Keywords: Molten Salts
Issue Date: 15-May-2012
Publisher: American Chemical Society
Citation: Lauw, Y., Horne, M. D., Rodopoulos, T., Lockett, V., Akgun, B., Hamilton, W. A., Nelson, A. R. J. (2012). Structure of [C(4)mpyr][NTf2] Room-Temperature Ionic Liquid at Charged Gold Interfaces. Langmuir, 28(19), 7374-7381.
Abstract: The structure of 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([C4mpyr][NTf2]) 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 [C4mpyr]+ 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 [C4mpyr]+ onto the gold electrode. © 2012, American Chemical Society
ISSN: 0743-7463
Appears in Collections:Journal Articles

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