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Review
. 2020 Aug 24;59(35):14736-14746.
doi: 10.1002/anie.202000617. Epub 2020 Jun 5.

Stability and Degradation Mechanisms of Copper-Based Catalysts for Electrochemical CO2 Reduction

Stefan Popović  1   2 , Milutin Smiljanić  1 , Primož Jovanovič  1   2 , Jan Vavra  3 , Raffaella Buonsanti  3 , Nejc Hodnik  1   2
Affiliations
Review

Stability and Degradation Mechanisms of Copper-Based Catalysts for Electrochemical CO2 Reduction

Stefan Popović et al. Angew Chem Int Ed Engl. .

Abstract

To date, copper is the only monometallic catalyst that can electrochemically reduce CO2 into high value and energy-dense products, such as hydrocarbons and alcohols. In recent years, great efforts have been directed towards understanding how its nanoscale structure affects activity and selectivity for the electrochemical CO2 reduction reaction (CO2 RR). Furthermore, many attempts have been made to improve these two properties. Nevertheless, to advance towards applied systems, the stability of the catalysts during electrolysis is of great significance. This aspect, however, remains less investigated and discussed across the CO2 RR literature. In this Minireview, the recent progress on understanding the stability of copper-based catalysts is summarized, along with the very few proposed degradation mechanisms. Finally, our perspective on the topic is given.

Keywords: copper nanoparticles; degradation; electrocatalysts; electrochemical CO2 reduction; stability.

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