We show herein that Pt-modified carbon-titanium dioxide cathode nanocomposite matrices (designated hereafter as Pt/C-TiO 2 ), prepared by heterogeneous photocatalysis, afford facile electrocatalytic reduction of carbon dioxide to methanol and isopropanol. Pyridinium cation was used as a solution co-catalyst in this study. The electrocatalytic activity of the new-generation Pt/C-TiO 2 cathodes was quantitatively mapped by the combined use of rotating disk electrode voltammetry along with gas chromatography assay of the reduction products in solution.
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Tacconi et al. (2011) studied this question.
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