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Metal-hydrogen systems with an exceptionally large and tunable thermodynamic destabilization

Author

Listed:
  • Peter Ngene

    (Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University)

  • Alessandro Longo

    (Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR, Palermo
    Netherlands Organization for Scientific Research (NWO), Dutch-Belgian Beamline, ESRF—The European Synchrotron)

  • Lennard Mooij

    (Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology)

  • Wim Bras

    (Netherlands Organization for Scientific Research (NWO), Dutch-Belgian Beamline, ESRF—The European Synchrotron)

  • Bernard Dam

    (Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology)

Abstract

Hydrogen is a key element in the energy transition. Hydrogen–metal systems have been studied for various energy-related applications, e.g., for their use in reversible hydrogen storage, catalysis, hydrogen sensing, and rechargeable batteries. These applications depend strongly on the thermodynamics of the metal–hydrogen system. Therefore, tailoring the thermodynamics of metal–hydrogen interactions is crucial for tuning the properties of metal hydrides. Here we present a case of large metal hydride destabilization by elastic strain. The addition of small amounts of zirconium to yttrium leads to a compression of the yttrium lattice, which is maintained during (de)hydrogenation cycles. As a result, the equilibrium hydrogen pressure of YH2 ↔ YH3 can be rationally and precisely tuned up to five orders of magnitude at room temperature. This allows us to realize a hydrogen sensor which indicates the ambient hydrogen pressure over four orders of magnitude by an eye-visible color change.

Suggested Citation

  • Peter Ngene & Alessandro Longo & Lennard Mooij & Wim Bras & Bernard Dam, 2017. "Metal-hydrogen systems with an exceptionally large and tunable thermodynamic destabilization," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02043-9
    DOI: 10.1038/s41467-017-02043-9
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    Cited by:

    1. Luca Pasquini, 2020. "Design of Nanomaterials for Hydrogen Storage," Energies, MDPI, vol. 13(13), pages 1-28, July.
    2. Kumar, Alok & Muthukumar, P., 2022. "Experimental investigation on the poisoning characteristics of methane as impurity in La0.9Ce0.1Ni5 based hydrogen storage and purification system," Energy, Elsevier, vol. 259(C).

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