Print Email Facebook Twitter Metal-hydrogen systems with an exceptionally large and tunable thermodynamic destabilization Title Metal-hydrogen systems with an exceptionally large and tunable thermodynamic destabilization Author Ngene, Peter (Universiteit Utrecht) Longo, Alessandro (Instituto per lo Studio dei Materiali Nanostrutturati; European Synchrotron Radiation Facility) Mooij, L.P.A. (TU Delft ChemE/Materials for Energy Conversion and Storage) Bras, Wim (European Synchrotron Radiation Facility) Dam, B. (TU Delft ChemE/Materials for Energy Conversion and Storage) Date 2017-12-01 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. To reference this document use: http://resolver.tudelft.nl/uuid:b4f3b1bd-8eed-44b2-8be4-0e05cbcb8f04 DOI https://doi.org/10.1038/s41467-017-02043-9 ISSN 2041-1723 Source Nature Communications, 8 (1), 1-8 Part of collection Institutional Repository Document type journal article Rights © 2017 Peter Ngene, Alessandro Longo, L.P.A. Mooij, Wim Bras, B. Dam Files PDF s41467_017_02043_9.pdf 1.66 MB Close viewer /islandora/object/uuid:b4f3b1bd-8eed-44b2-8be4-0e05cbcb8f04/datastream/OBJ/view