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Schlagwörter:
Catalyst activity; Cathodes; Electrolytic reduction; Nanocomposites; Nanostructures; Pulsed laser deposition; Synthesis gas; Tin oxides, Au nanostructure; Electro reduction; Electrocatalytic reduction; Fluorine doped tin oxide; Gold nanostructures; One step synthesis; Structural feature; Viable solutions, Carbon dioxide
Zusammenfassung:
Electrocatalytic reduction of CO2 recently emerged as a viable solution in view of changing the common belief and considering carbon dioxide as a valuable reactant instead of a waste product. In this view, we herein propose the one-step synthesis of gold nanostructures of different morphologies grown on fluorine-doped tin oxide electrodes by means of pulsed-laser deposition. The resulting cathodes are able to produce syngas mixtures of different compositions at overpotentials as low as 0.31 V in CO2-presaturated aqueous media. Insights into the correlation between the structural features/morphology of the cathodes and their catalytic activity are also provided, confirming recent reports on the remarkable sensitivity toward CO production for gold electrodes exposing undercoordinated sites and facets. Copyright © 2020 American Chemical Society.
