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

doi:10.1021/acsenergylett.8b00092

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

Technical University of Denmark

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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 language	English
Journal	ACS Energy Letters
Volume	3
Issue number	3
Pages (from-to)	634-640
DOIs	https://doi.org/10.1021/acsenergylett.8b00092
Publication status	Published - 2018

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COFUNDPostdocDTU: COFUNDPostdocDTU
Præstrud, M. R. (Project Participant) & Brodersen, S. W. (Project Participant)
01/01/2014 → 31/12/2019
Project: Research

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title = "Electroreduction of CO on Polycrystalline Copper at Low Overpotentials",

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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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

SN - 2380-8195

VL - 3

SP - 634

EP - 640

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 3

ER -

Electroreduction of CO on Polycrystalline Copper at Low Overpotentials

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