IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_ncomms14496.html
   My bibliography  Save this article

Capture of heavy hydrogen isotopes in a metal-organic framework with active Cu(I) sites

Author

Listed:
  • I. Weinrauch

    (Max Planck Institute for Intelligent Systems)

  • I. Savchenko

    (Jacobs University, School of Engineering and Science)

  • D. Denysenko

    (Augsburg University, Institute of Physics)

  • S. M. Souliou

    (Max Planck Institute for Solid State Research)

  • H-H Kim

    (Max Planck Institute for Solid State Research)

  • M. Le Tacon

    (Max Planck Institute for Solid State Research)

  • L. L. Daemen

    (Oak Ridge National Laboratory, Spallation Neutron Source)

  • Y. Cheng

    (Oak Ridge National Laboratory, Spallation Neutron Source)

  • A. Mavrandonakis

    (Jacobs University, School of Engineering and Science)

  • A. J. Ramirez-Cuesta

    (Oak Ridge National Laboratory, Spallation Neutron Source)

  • D. Volkmer

    (Augsburg University, Institute of Physics)

  • G. Schütz

    (Max Planck Institute for Intelligent Systems)

  • M. Hirscher

    (Max Planck Institute for Intelligent Systems)

  • T. Heine

    (Jacobs University, School of Engineering and Science
    Wilhelm-Ostwald-Institute of Physical and Theoretical Chemistry)

Abstract

The production of pure deuterium and the removal of tritium from nuclear waste are the key challenges in separation of light isotopes. Presently, the technological methods are extremely energy- and cost-intensive. Here we report the capture of heavy hydrogen isotopes from hydrogen gas by selective adsorption at Cu(I) sites in a metal-organic framework. At the strongly binding Cu(I) sites (32 kJ mol−1) nuclear quantum effects result in higher adsorption enthalpies of heavier isotopes. The capture mechanism takes place most efficiently at temperatures above 80 K, when an isotope exchange allows the preferential adsorption of heavy isotopologues from the gas phase. Large difference in adsorption enthalpy of 2.5 kJ mol−1 between D2 and H2 results in D2-over-H2 selectivity of 11 at 100 K, to the best of our knowledge the largest value known to date. Combination of thermal desorption spectroscopy, Raman measurements, inelastic neutron scattering and first principles calculations for H2/D2 mixtures allows the prediction of selectivities for tritium-containing isotopologues.

Suggested Citation

  • I. Weinrauch & I. Savchenko & D. Denysenko & S. M. Souliou & H-H Kim & M. Le Tacon & L. L. Daemen & Y. Cheng & A. Mavrandonakis & A. J. Ramirez-Cuesta & D. Volkmer & G. Schütz & M. Hirscher & T. Heine, 2017. "Capture of heavy hydrogen isotopes in a metal-organic framework with active Cu(I) sites," Nature Communications, Nature, vol. 8(1), pages 1-7, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14496
    DOI: 10.1038/ncomms14496
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms14496
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms14496?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Tingting Pan & Kaijie Yang & Xinglong Dong & Shouwei Zuo & Cailing Chen & Guanxing Li & Abdul-Hamid Emwas & Huabin Zhang & Yu Han, 2024. "Strategies for high-temperature methyl iodide capture in azolate-based metal-organic frameworks," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14496. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.