CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper

doi:10.1002/celc.201600068

Title: CO ₂ Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper

Authors:

Kwon, Youngkook ^[1]; Lum, Yanwei ^[2]; Clark, Ezra L. ^[3]; Ager, Joel W. ^[4]; Bell, Alexis T. ^[3]

Joint Center for Artificial Photosynthesis, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720 CA USA
Joint Center for Artificial Photosynthesis, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720 CA USA, Department of Materials Science and Engineering, University of California, Berkeley, Berkeley 94720 CA USA
Joint Center for Artificial Photosynthesis, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720 CA USA, Department of Chemical & Biomolecular Engineering, University of California, Berkeley, Berkeley 94720 CA USA
Joint Center for Artificial Photosynthesis, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720 CA USA, Department of Materials Science and Engineering, University of California, Berkeley, Berkeley 94720 CA USA, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720 CA USA

Publication Date:: 2016-04-23

Sponsoring Org.:: USDOE

OSTI Identifier:: 1401194

Grant/Contract Number:: SC0004993

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: ChemElectroChem

Additional Journal Information:: Journal Name: ChemElectroChem Journal Volume: 3 Journal Issue: 6; Journal ID: ISSN 2196-0216

Publisher:: Wiley Blackwell (John Wiley & Sons)

Country of Publication:: Germany

Language:: English

Citation Formats


                    Kwon, Youngkook, Lum, Yanwei, Clark, Ezra L., Ager, Joel W., and Bell, Alexis T. CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper.  Germany: N. p., 2016. 
        Web.  doi:10.1002/celc.201600068.

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                    Kwon, Youngkook, Lum, Yanwei, Clark, Ezra L., Ager, Joel W., & Bell, Alexis T. CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper.  Germany.  doi:10.1002/celc.201600068.

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                    Kwon, Youngkook, Lum, Yanwei, Clark, Ezra L., Ager, Joel W., and Bell, Alexis T. Sat .  
        "CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper".  Germany.  doi:10.1002/celc.201600068.

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@article{osti_1401194,

  title        = {CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper},

  author       = {Kwon, Youngkook and Lum, Yanwei and Clark, Ezra L. and Ager, Joel W. and Bell, Alexis T.},

  abstractNote = {},

  doi          = {10.1002/celc.201600068},

  journal      = {ChemElectroChem},

  number       = 6,

  volume       = 3,

  place        = {Germany},

  year         = {2016},

  month        = {4}

}

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DOI: 10.1002/celc.201600068

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Cited by: 21 works

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Works referenced in this record:

CO₂ Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu₂O Films
journal, April 2012

Li, Christina W.; Kanan, Matthew W.
Journal of the American Chemical Society, Vol. 134, Issue 17, p. 7231-7234
DOI: 10.1021/ja3010978

Electrochemical CO₂ Reduction on Metal Electrodes
book, January 2008

Hori, Y.; Vayenas, Constantinos G.; White, Ralph E.
Modern Aspects of Electrochemistry, p. 89-189
DOI: 10.1007/978-0-387-49489-0_3

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CO ₂ Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper

Journal Article Kwon, Youngkook ; Lum, Yanwei ; Clark, Ezra L. ; ... - ChemElectroChem

There are a number of recent reports on the use of oxidation/reduction cycling of Cu surfaces to improve their selectivity for ethylene formation in the aqueous CO ₂ reduction reaction. Here, the oxidation/reduction process is examined in detail. It is found that the faradaic efficiencies for both ethylene and ethanol are enhanced after oxidation/reduction cycling in the presence of halide anions. Specifically, cycling of the electrode in the presence of chloride, bromide, or fluoride anions allows for an ethylene faradaic efficiency of approximately 15.2 %, a factor of 1.5 higher than that for polycrystalline copper (at -1.0 V vs. RHE).more »« less
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Direct conversion of carbon dioxide to multicarbon products remains as a grand challenge in electrochemical CO ₂ reduction. Various forms of oxidized copper have been demonstrated as electrocatalysts that still require large overpotentials. Here in this paper, we show that an ensemble of Cu nanoparticles (NPs) enables selective formation of C ₂–C ₃ products at low overpotentials. Densely packed Cu NP ensembles underwent structural transformation during electrolysis into electrocatalytically active cube-like particles intermixed with smaller nanoparticles. Ethylene, ethanol, and n-propanol are the major C ₂–C ₃ products with onset potential at -0.53 V (vs. reversible hydrogen electrode, RHE) and Cmore »« less
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DOI: 10.1073/pnas.1711493114
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Electrocatalytic CO ₂ reduction to generate multicarbon products is of interest for applications in artificial photosynthetic schemes. This is a particularly attractive goal for CO ₂ reduction by copper electrodes, where a broad range of hydrocarbon products can be generated but where selectivity for C–C coupled products relative to CH ₄ and H ₂ remains an impediment. Herein we report a simple yet highly selective catalytic system for CO ₂ reduction to C _≥2 hydrocarbons on a polycrystalline Cu electrode in bicarbonate aqueous solution that uses N-substituted pyridinium additives. Selectivities of 70–80% for C ₂ and C ₃ products withmore »« less
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Title: CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper

Citation Formats

CO2 Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu2O Films journal, April 2012

Electrochemical CO2 Reduction on Metal Electrodes book, January 2008

Title: CO ₂ Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper

CO₂ Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu₂O Films
journal, April 2012

Electrochemical CO₂ Reduction on Metal Electrodes
book, January 2008