Core–shell nanostructured Cu-based bi-metallic electrocatalysts for co-production of ethylene and acetate

Jeannie Z. Y. Tan*, Ashween Kaur Virdee, John M. Andresen, M. Mercedes Maroto-Valer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Direct electrocatalytic CCU routes to produce a myriad of valuable chemicals (e.g., methanol, acetic acid, ethylene, propanol, among others) will allow the chemical industry to shift away from the conventional fossil-based production. Electrofuels need to go beyond the current electroreduction of CO2 to CO, and we will here demonstrate the continuous flow electroreduction of syngas (i.e., CO and H2), which are the products from CO2-to-CO, with enhanced product selectivity (∼90% towards ethylene). To overcome current drawbacks, including bicarbonate formation that resulted in low CO2 utilisation and low C2+ product selectivity, the development of nanostructured core–shell bi-metallic electrocatalysts for direct electrochemical reduction of syngas to C2+ is proposed. Electrosynthesis of ethylene is performed in a state-of-the-art continuous flow three-compartment cell to produce ethylene (cathodic gas phase product) and acetate (cathodic liquid phase product), simultaneously.
Original languageEnglish
Pages (from-to)216-226
Number of pages11
JournalFaraday Discussions
Volume247
Early online date19 Jun 2023
DOIs
Publication statusPublished - 1 Nov 2023

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