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Desorption reaction in MgH 2 studied with in situ μ + SR
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2019 (English)In: Sustainable Energy and Fuels, ISSN 2398-4902, Vol. 3, no 4, p. 956-964Article in journal (Refereed) Published
Abstract [en]

In order to study the mechanism determining the desorption temperature (T d ) of hydrogen storage materials, we have measured positive muon spin rotation and relaxation (μ + SR) in MgH 2 over a wide temperature range including its T d . The pressure in the sample cell due to desorbed H 2 was measured in parallel with the μ + SR measurements under static conditions. Such in situ μ + SR measurements revealed that hydrogen starts to diffuse in MgH 2 well below T d . This indicates the important role of hydrogen diffusion in accelerating the desorption reaction by removing the reaction product, i.e. H 2 , from the reaction system.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2019. Vol. 3, no 4, p. 956-964
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Other Chemical Engineering
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URN: urn:nbn:se:kth:diva-251906DOI: 10.1039/c8se00568kISI: 000467219500019Scopus ID: 2-s2.0-85063419615OAI: oai:DiVA.org:kth-251906DiVA, id: diva2:1318171
Note

QC 20190527

Available from: 2019-05-27 Created: 2019-05-27 Last updated: 2019-05-29Bibliographically approved

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Forslund, Ola KenjiMånsson, Martin

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