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An in situ Mössbauer study using synchrotron radiation

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Abstract

We have been developing a system for in situ Mössbauer studies using synchrotron radiation (SR) to elucidate the mechanism of hydrogenation processes. In the system, samples reacts in a pressure-temperature chamber and SR-based Mössbauer spectra using variable-frequency nuclear monochromator and energy spectra of inelastic nuclear resonant scattering (NRS) of SR are measured. As a feasibility study, the temperature dependence of the Mössbauer and inelastic NRS spectra of 57Fe in c-GdFe2H3 under vacuum were measured. In both spectra, clear differences were observed between 373 K and 573 K. These differences can be interpreted by the change of microscopic environment around Fe at the dehydrogenation. Thus, it is confirmed that this system works well enough to perform the in-situ Mössbauer study on the dehydrogenation of c-GdFe2H3.

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Authors and Affiliations

  1. Condensed Matter Science Division, Japan Atomic Energy Agency, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan

    Ryo Masuda, Takaya Mitsui & Makoto Seto

  2. Faculty of Education, Okayama University, Tsushima-Naka, Kita-ku, Okayama, 700-8530, Japan

    Keiji Itoh

  3. Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 5, Tsukuba, Ibaraki, 305-8565, Japan

    Kouji Sakaki, Hirotoshi Enoki & Yumiko Nakamura

  4. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan

    Makoto Seto

  5. CREST, Japan Science and Technology Agency, Honcho, Kawaguchi, Saitama, 332-0012, Japan

    Takaya Mitsui & Makoto Seto

Authors
  1. Ryo Masuda
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  2. Takaya Mitsui
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  3. Keiji Itoh
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  4. Kouji Sakaki
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  5. Hirotoshi Enoki
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  6. Yumiko Nakamura
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  7. Makoto Seto
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Corresponding author

Correspondence to Ryo Masuda.

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Masuda, R., Mitsui, T., Itoh, K. et al. An in situ Mössbauer study using synchrotron radiation. Hyperfine Interact 204, 139–142 (2012). https://doi.org/10.1007/s10751-011-0470-x

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  • DOI: https://doi.org/10.1007/s10751-011-0470-x

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