Electroreduction of CO on Polycrystalline Copper at Low Overpotentials

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

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

C uis 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
JournalACS Energy Letters
Volume3
Issue number3
Pages (from-to)634-640
DOIs
Publication statusPublished - 2018

Cite this

Bertheussen, Erlend ; Vagn Hogg, Thomas ; Abghoui, Younes ; Engstfeld, Albert Kilian ; Chorkendorff, Ib ; Stephens, Ifan E. L. / Electroreduction of CO on Polycrystalline Copper at Low Overpotentials. In: ACS Energy Letters. 2018 ; Vol. 3, No. 3. pp. 634-640.
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abstract = "C uis 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.",
author = "Erlend Bertheussen and {Vagn Hogg}, Thomas and Younes Abghoui and Engstfeld, {Albert Kilian} and Ib Chorkendorff and Stephens, {Ifan E. L.}",
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Electroreduction of CO on Polycrystalline Copper at Low Overpotentials. / Bertheussen, Erlend; Vagn Hogg, Thomas; Abghoui, Younes; Engstfeld, Albert Kilian; Chorkendorff, Ib; Stephens, Ifan E. L.

In: ACS Energy Letters, Vol. 3, No. 3, 2018, p. 634-640.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Electroreduction of CO on Polycrystalline Copper at Low Overpotentials

AU - Bertheussen, Erlend

AU - Vagn Hogg, Thomas

AU - Abghoui, Younes

AU - Engstfeld, Albert Kilian

AU - Chorkendorff, Ib

AU - Stephens, Ifan E. L.

PY - 2018

Y1 - 2018

N2 - C uis 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.

AB - C uis 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.

U2 - 10.1021/acsenergylett.8b00092

DO - 10.1021/acsenergylett.8b00092

M3 - Journal article

VL - 3

SP - 634

EP - 640

JO - ACS Energy Letters

JF - ACS Energy Letters

SN - 2380-8195

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