Diffusion of water and hydrogen in MoS2 (single crystal and powder)
MoS2 is an intensely studied catalyst candidate for the hydrogen evolution reaction (HER) in water electrolyses. We have recently initiated a project to elucidate the structural and dynamic foundations for the reactivity of MoS2 by use of neutron scattering and complementary techniques. A first NSE experiment (7-05-460) revealed considerable reactivity and very fast diffusion within the layers of this 2D material, which could be underpinned by a TOF study on TOFTOF at MLZ, Garching. A recent NSE study on electrolyses materials (MoS2 on carbon substrate), showed that both hydrogen and water dynamics can be detected in a similar dynamic window. Therefore, we propose to perform a dedicated study to identify and separate the respective components of water and hydrogen dynamics in MoS2 single crystals and powders.
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TRAEGER Franziska; FOUQUET Peter; KOZA Michael Marek and KUZNETSOV Vitalii. (2020). Diffusion of water and hydrogen in MoS2 (single crystal and powder). Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-509
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