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Activation and splitting of carbon dioxide on the surface of an inorganic electride material

Author

Listed:
  • Yoshitake Toda

    (Frontier Research Center, Tokyo Institute of Technology)

  • Hiroyuki Hirayama

    (Tokyo Institute of Technology)

  • Navaratnarajah Kuganathan

    (University College London)

  • Antonio Torrisi

    (University College London)

  • Peter V. Sushko

    (University College London)

  • Hideo Hosono

    (Frontier Research Center, Tokyo Institute of Technology
    Materials Research Center for Element Strategy, Tokyo Institute of Technology)

Abstract

Activation of carbon dioxide is the most important step in its conversion into valuable chemicals. Surfaces of stable oxide with a low work function may be promising for this purpose. Here we report that the surfaces of the inorganic electride [Ca24Al28O64]4+(e−)4 activate and split carbon dioxide at room temperature. This behaviour is attributed to a high concentration of localized electrons in the near-surface region and a corrugation of the surface that can trap oxygen atoms and strained carbon monoxide and carbon dioxide molecules. The [Ca24Al28O64]4+(e−)4 surface exposed to carbon dioxide is studied using temperature-programmed desorption, and spectroscopic methods. The results of these measurements, corroborated with ab initio simulations, show that both carbon monoxide and carbon dioxide adsorb on the [Ca24Al28O64]4+(e−)4 surface at RT and above and adopt unusual configurations that result in desorption of molecular carbon monoxide and atomic oxygen upon heating.

Suggested Citation

  • Yoshitake Toda & Hiroyuki Hirayama & Navaratnarajah Kuganathan & Antonio Torrisi & Peter V. Sushko & Hideo Hosono, 2013. "Activation and splitting of carbon dioxide on the surface of an inorganic electride material," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3378
    DOI: 10.1038/ncomms3378
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    Cited by:

    1. Navaratnarajah Kuganathan & Alexander Chroneos, 2020. "Lithium Storage in Nanoporous Complex Oxide 12CaO•7Al 2 O 3 (C12A7)," Energies, MDPI, vol. 13(7), pages 1-10, March.
    2. Wan Isahak, Wan Nor Roslam & Che Ramli, Zatil Amali & Mohamed Hisham, Mohamed Wahab & Yarmo, Mohd Ambar, 2015. "The formation of a series of carbonates from carbon dioxide: Capturing and utilisation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 93-106.
    3. Navaratnarajah Kuganathan & Ruslan V. Vovk & Alexander Chroneos, 2020. "Mayenite Electrides and Their Doped Forms for Oxygen Reduction Reaction in Solid Oxide Fuel Cells," Energies, MDPI, vol. 13(18), pages 1-14, September.

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