Abstract
Cyclic voltammetry and Fourier transform IR spectroscopy have been employed to study the activity of Pt(110) single crystals towards CO2 reduction. Linear-bonded CO and traces of multibonded CO are the main reaction products. No differences in the nature of “reduced CO2” were observed for different adsorption potentials, adsorption times, base electrolyte composition and cooling conditions of the electrode surface. At any potential below 0.20 V the surface can be saturated, indicating that hydrogen readsorption takes place. Anionic carbonate species are adsorbed at potentials above 0.50 V.
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