Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.064
Publication date: 22nd December 2022
Correlating activity, selectivity and stability with the structure and composition of catalysts is crucial to advancing the knowledge in chemical transformations which are essential to move towards a more sustainable economy. Among these, the electrochemical CO2 reduction reaction (CO2RR) holds the promise to close the carbon cycle by storing renewable energies into chemical feedstocks. Yet it still suffers from the lack of efficient, selective and stable catalysts.
In this talk, I will showcase a few examples which highlight how shape-controlled nanocrystals can contribute to address the selectivity challenge in CO2RR. First of all, I will discuss how size control of Cu nanocubes and Cu octahedra has revealed the importance of facet-ratio to maximize the selectivity towards ethylene and methane, respectively. Second, I will describe our recent efforts towards using shape-controlled NCs beyond pure Cu, in the framework of tandem schemes and bimetallics. Finally, I will present our strategies to enhance the stability of these Cu catalysts during operation.
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