An In Situ Surface Fourier Transform Study of Complexes of Lithium, Magnesium Potassium, and Lanthanum Ferrocyanide at Platinum and Gold Electrodes
Technical rept. no. 102, Sep 1987-Jul 1988
UTAH UNIV SALT LAKE CITY DEPT OF CHEMISTRY
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The working electrode was either a platinum or gold disk 1 cm diameter, which had been polished to a mirror finish using progressively smaller diameters of alumina down to 0.05 micro meters. The disk was mounted on the end of a glass syringe barrel designed to fit the infrared cell. The cell construction was of the thin layer type and has been described previously. A platinum wire quasi-reference electrode was used throughout these experiments. The spectrometer employed was a vacuum bench Brucker-IBM model IR98 FTIR on which subtractively normalized interfacial Fourier transform infrared spectroscopy SNIFTIRS9 could be performed. In SNIFTIRS difference spectra, the data are displayed so that bands extending to positive upwards values of relative reflectance are due to species at the base reference potential reactants in the unperturbed system, while negative bands denote species formed when the potential is stepped to a new value the products of the electrochemical reaction. Electrodes.
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