Please use this identifier to cite or link to this item: https://doi.org/10.1002/anie.202202859
Title: Production of C<inf>3</inf>–C<inf>6</inf> Acetate Esters via CO Electroreduction in a Membrane Electrode Assembly Cell
Authors: Zhou, Y
Ganganahalli, R
Verma, S
Tan, HR
Yeo, BS 
Keywords: CO Electroreduction
Electrocatalysis
Esters
Membrane Electrode Assembly
Acetates
Alcohols
Carbon Monoxide
Electrodes
Esters
Issue Date: 18-Jul-2022
Publisher: Wiley
Citation: Zhou, Y, Ganganahalli, R, Verma, S, Tan, HR, Yeo, BS (2022-07-18). Production of C3–C6 Acetate Esters via CO Electroreduction in a Membrane Electrode Assembly Cell. Angewandte Chemie - International Edition 61 (29) : e202202859-. ScholarBank@NUS Repository. https://doi.org/10.1002/anie.202202859
Abstract: Electrocatalytic carbon monoxide reduction has been previously reported to yield a range of carbonaceous products including alcohols, hydrocarbons and carboxylic acids. However, esters, an important family of organic compounds, have not been formed. Herein, we report the electrosynthesis of C3 to C6 acetate esters (H3C−(C=O)−O−R) from carbon monoxide using copper catalysts in a membrane electrode assembly cell. Ethyl acetate and propyl acetate could be produced with an unprecedented total Faradaic efficiency (FE) of ∼22 % and with a current density of up to −55 mA cm−2, alongside minor quantities of methyl acetate and butyl acetate. The esters are produced via the addition reaction of ethenone (H2C=C=O) and alcohols produced during CO reduction. We show that the near water-free reaction conditions and the high local pH play key roles in the formation of the esters.
Source Title: Angewandte Chemie - International Edition
URI: https://scholarbank.nus.edu.sg/handle/10635/230338
ISSN: 14337851
15213773
DOI: 10.1002/anie.202202859
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