Electroreduction of CO on Polycrystalline Copper at Low Overpotentials

Erlend Bertheussen, Thomas V. Hogg, Younes Abghoui, Albert K. Engstfeld, Ib Chorkendorff*, Ifan E.L. Stephens

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


Cu is the only monometallic electrocatalyst to produce highly reduced products from CO2 selectively because of its intermediate binding of CO. We investigate the performance of polycrystalline Cu for the electroreduction of CO in alkaline media (0.1 M KOH) at low overpotentials (-0.4 to -0.6 V vs RHE). We find that polycrystalline Cu is highly active at these potentials. The overall CO reduction rates are comparable to those of the nanostructured forms of the material, albeit with a distinct product distribution. While nanostructured forms of Cu favor alcohols, polycrystalline Cu produces greater amounts of C2 and C3 aldehydes, as well as ethylene.

Original languageEnglish
Pages (from-to)634-640
Number of pages7
JournalACS Energy Letters
Issue number3
Publication statusPublished - 9 Mar 2018

Bibliographical note

Funding Information:
This work was funded by the Villum Foundation V-SUSTAIN grant 9455 to the Villum Center for the Science of Sustainable Fuels and Chemicals. Y.A. received funding from The Icelandic Research Fund; A.K.E. received funding from the People Program (Marie Curie Actions) of the European Union’s Seventh Framework Program (FP7/2007-2013) under REA Grant Agreement No. 609405 (COFUNDPostdocDTU) [information available on web site]. We thank Jakob Kibsgaard for producing the abstract and table of contents graphic.

Publisher Copyright:
© 2018 American Chemical Society.


Dive into the research topics of 'Electroreduction of CO on Polycrystalline Copper at Low Overpotentials'. Together they form a unique fingerprint.

Cite this