Electrochemical cell for neutron reflectometry studies of the structureof ionic liquids at electrified interface

We describe the design and use of a closed three-electrode electrochemical cell for neutron reflectometry studies of the structure of the electrical double-layer in ionic liquids. A transparent glass counter electrode was incorporated to allow easy monitoring of any gas bubbles trapped in the cell....

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Bibliographic Details
Published in:Review of scientific instruments 2010-07, Vol.81 (7), p.074101-074101-6
Main Authors: Lauw, Y., Rodopoulos, T., Gross, M., Nelson, A., Gardner, R., Horne, M. D.
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Summary:We describe the design and use of a closed three-electrode electrochemical cell for neutron reflectometry studies of the structure of the electrical double-layer in ionic liquids. A transparent glass counter electrode was incorporated to allow easy monitoring of any gas bubbles trapped in the cell. A 100 mm diameter silicon wafer polished to 0.1 nm rms roughness coated with gold over a chromium adhesion layer was used as the working electrode. The utility of the cell was demonstrated during neutron reflectometry measurements of the ultrahigh purity ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ( [ C 4 mpyr ] [ NTf 2 ] ) at two different applied potentials.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3455178