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Glycerol Oxidation Pairs with Carbon Monoxide Reduction for Low-Voltage Generation of C2and C3Product Streams

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisLetterpeer review

  • Hossein Yadegari, University of Toronto
  • ,
  • Adnan Ozden, University of Toronto
  • ,
  • Tartela Alkayyali, University of Toronto
  • ,
  • Vikram Soni, University of Toronto
  • ,
  • Arnaud Thevenon, California Institute of Technology
  • ,
  • Alonso Rosas-Hernández
  • Theodor Agapie, California Institute of Technology
  • ,
  • Jonas C. Peters, California Institute of Technology
  • ,
  • Edward H. Sargent, University of Toronto
  • ,
  • David Sinton, University of Toronto

Electrochemical carbon dioxide reduction to multicarbon products provides the storage of renewable energy in the form of chemical bonds, as well as a means to displace fossil sources of chemical feedstocks. However, the accompanying anodic oxygen evolution reaction (OER) reduces the energy efficiency of the process without providing a salable product. Replacing OER with alternative organic oxidation reactions (OORs) is an emerging strategy to reduce the full-cell potential and generate valuable products on both sides of the cell. We pursue carbon monoxide reduction that avoids carbonate formation and benefits from highly alkaline anode conditions favorable for OOR. This coelectrolysis strategy achieves a cathodic C2+ product stream (71% FE) and an anodic C3 product stream (75% FE) at 180 mA cm-2 with a full-cell potential of 1.34 V. The integrated system reduces the CO-to-C2H4 energy requirement by 55% (to ∼72 GJ/ton_C2H4), halving the projected energy cost of ethylene production from CO2.

TidsskriftACS Energy Letters
Sider (fra-til)3538-3544
Antal sider7
StatusUdgivet - okt. 2021
Eksternt udgivetJa

Bibliografisk note

Funding Information:
The authors acknowledge Ontario Centre for the Characterization of Advanced Materials (OCCAM) for sample preparation and characterization facilities. The authors acknowledge financial support from the Ontario Research Foundation: Research Excellence Program; the Natural Sciences and Engineering Research Council (NSERC) of Canada; the CIFAR Bio-Inspired Solar Energy program; and the Joint Centre of Artificial Synthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the US Department of Energy under Award No. DE-SC0004993. D.S. acknowledges the NSERC E.W.R Steacie Memorial Fellowship. A.T. acknowledges Marie Skłodowska-Curie Fellowship H2020-MSCA-IF-2017 (793471). Infrastructure support from the Canada Foundation for Innovation and the Ontario Research Fund are also gratefully acknowledged.

Publisher Copyright:
© 2021 American Chemical Society.

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