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Journal Article

Syngas Evolution from CO2 Electroreduction by Porous Au Nanostructures

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Ghidelli,  Matteo
Thin Films and Nanostructured Materials, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Micro- and Nanostructured Materials Laboratory, Department of Energy, Politecnico di Milano, Via Ponzio 34/3, 20133 Milano, Italy;

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Citation

Mascaretti, L., Niorettini, A., Bricchi, B. R., Ghidelli, M., Naldoni, A., Caramori, S., et al. (2020). Syngas Evolution from CO2 Electroreduction by Porous Au Nanostructures. ACS Applied Energy Materials, 3(5), 4658-4668. doi:10.1021/acsaem.0c00301.


Cite as: https://hdl.handle.net/21.11116/0000-0009-6AD9-C
Abstract
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.