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Neutron spectroscopy study of the diffusivity of hydrogen in MoS2

  • The diffusion of hydrogen adsorbed inside layered MoS2 crystals has been studied by means of quasi- elastic neutron scattering, neutron spin-echo spectroscopy, nuclear reaction analysis, and X-ray photoelectron spectroscopy. The neutron time-of-flight and neutron spin-echo measurements demonstrate fast diffusion of hydrogen molecules parallel to the basal planes of the two dimensional crystal planes. At room temperature and above, this intra-layer diffusion is of a similar speed to the surface diffusion that has been observed in earlier studies for hydrogen atoms on Pt surfaces. A significantly slower hydrogen diffusion was observed perpendicular to the basal planes using nuclear reaction analysis.

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Author:Vitalii Kuznetsov, Wiebke Lohstroh, Detlef Rogalla, Hans-Werner Becker, Thomas Strunskus, Alexei Nefedov, Eva Kovacevic, Franziska Traeger, Peter Fouquet
DOI:https://doi.org/10.1039/D0CP05136E
Parent Title (English):Physical Chemistry Chemical Physics
Document Type:Article
Language:English
Date of Publication (online):2021/08/20
Year of first Publication:2021
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2021/08/20
Volume:23
Issue:13
First Page:7961
Last Page:7973
Departments / faculties:Fachbereiche / Wirtschaftsingenieurwesen
Licence (German):License LogoEs gilt das Urheberrechtsgesetz

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