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Accurate measurement of hydrogen concentration in transition metal hydrides utilizing electronic excitations by MeV ions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.ORCID iD: 0000-0002-5406-2659
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-1019-6604
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0001-5997-8597
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-7517-8204
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2024 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 57, p. 583-588Article in journal (Refereed) Published
Abstract [en]

This study focuses on enhancing the accuracy of hydrogen content verification in hydrogen-rich ultrathin materials relevant for sustainable energy applications. Ion beams are used for distinctive real-space detection leveraging elastic and inelastic interactions with hydrogen atoms. However, the lack of experimental reference data on electronic interactions poses a challenge to the accuracy of analytical techniques. We investigate the effect of absorbed hydrogen on the electronic energy deposition of 15N-ions in amorphous transition metal compounds, specifically V and Zr, covering concentrations >1H/M. Employing resonant nuclear reactions and Rutherford backscattering, the energy loss is found to increase considerably with hydrogen content, in line with Bragg's additivity. The electronic energy loss cross section for 15N-ions at 6.5 MeV measured (64.55±3.38) eV cm2/1015 atoms. Results are compared to semi-empirical and theoretical models. The findings improve hydrogen profiling accuracy using 15N-nuclear reaction analysis and enable unprecedented methods for hydrogen quantification by other, commonly available ion beams.

Place, publisher, year, edition, pages
Elsevier, 2024. Vol. 57, p. 583-588
Keywords [en]
Hydrogen detection, Ion beam analysis, Transition metal hydrides, Hydrogen-rich materials, Electronic excitations, Hydrogen storage
National Category
Atom and Molecular Physics and Optics Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-524600DOI: 10.1016/j.ijhydene.2024.01.032ISI: 001163507100001OAI: oai:DiVA.org:uu-524600DiVA, id: diva2:1844059
Part of project
THE ACCELERATOR-BASED ION TECHNOLOGY CONSORTIUM - AB-ITC, Swedish Research Council
Funder
Swedish Research Council, 2017-00646_9Swedish Foundation for Strategic Research, RIF14-0053Available from: 2024-03-12 Created: 2024-03-12 Last updated: 2024-03-12Bibliographically approved

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Komander, KristinaMalinovskis, PauliusPálsson, Gunnar K.Wolff, MaxPrimetzhofer, Daniel

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International journal of hydrogen energy
Atom and Molecular Physics and OpticsCondensed Matter Physics

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