Selective high-temperature CO2 electrolysis enabled by oxidized carbon intermediates

  title={Selective high-temperature CO2 electrolysis enabled by oxidized carbon intermediates},
  author={T. L. Skafte and Zixuan Guan and Michael L. Machala and C. Gopal and M. Monti and L. Martinez and E. Stamate and S. Sanna and Jos{\'e} A Garrido Torres and E. Crumlin and M. Garc{\'i}a-Melchor and M. Bajdich and W. Chueh and Christopher Graves},
  journal={Nature Energy},
  • T. L. Skafte, Zixuan Guan, +11 authors Christopher Graves
  • Published 2019
  • Materials Science
  • Nature Energy
  • High-temperature CO2 electrolysers offer exceptionally efficient storage of renewable electricity in the form of CO and other chemical fuels, but conventional electrodes catalyse destructive carbon deposition. Ceria catalysts are known carbon inhibitors for fuel cell (oxidation) reactions; however, for more severe electrolysis (reduction) conditions, catalyst design strategies remain unclear. Here we establish the inhibition mechanism on ceria and show selective CO2 to CO conversion well beyond… CONTINUE READING
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