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Production of C3–C6 Acetate Esters via CO Electroreduction in a Membrane Electrode Assembly Cell.

Authors :
Zhou, Yansong
Ganganahalli, Ramesha
Verma, Sumit
Tan, Hui Ru
Yeo, Boon Siang
Source :
Angewandte Chemie International Edition; 7/18/2022, Vol. 61 Issue 29, p1-7, 7p
Publication Year :
2022

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14337851
Volume :
61
Issue :
29
Database :
Complementary Index
Journal :
Angewandte Chemie International Edition
Publication Type :
Academic Journal
Accession number :
157907352
Full Text :
https://doi.org/10.1002/anie.202202859