An in situ Mössbauer study using synchrotron radiation

Ryo Masuda; Takaya Mitsui; Keiji Itoh; Kouji Sakaki; Hirotoshi Enoki; Yumiko Nakamura; Makoto Seto

doi:10.1007/s10751-011-0470-x

An in situ Mössbauer study using synchrotron radiation

Ryo Masuda, Takaya Mitsui, Keiji Itoh, Kouji Sakaki, Hirotoshi Enoki, Yumiko Nakamura, Makoto Seto

Research output: Contribution to journal › Article

2 Citations (Scopus)

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-GdFe ₂H ₃ 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-GdFe ₂H ₃.

Original language	English
Pages (from-to)	139-142
Number of pages	4
Journal	Hyperfine Interactions
Volume	204
Issue number	1-3
DOIs	https://doi.org/10.1007/s10751-011-0470-x
Publication status	Published - Mar 2012

Keywords

GdFe
Hydrogen desorption
In situ Mössbauer study
Inelastic nuclear resonant scattering
Nuclear monochromator
Synchrotron radiation

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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Masuda, R., Mitsui, T., Itoh, K., Sakaki, K., Enoki, H., Nakamura, Y., & Seto, M. (2012). An in situ Mössbauer study using synchrotron radiation. Hyperfine Interactions, 204(1-3), 139-142. https://doi.org/10.1007/s10751-011-0470-x

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abstract = "We have been developing a system for in situ M{\"o}ssbauer 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 M{\"o}ssbauer 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 M{\"o}ssbauer and inelastic NRS spectra of 57Fe in c-GdFe 2H 3 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 M{\"o}ssbauer study on the dehydrogenation of c-GdFe 2H 3.",

keywords = "GdFe, Hydrogen desorption, In situ M{\"o}ssbauer study, Inelastic nuclear resonant scattering, Nuclear monochromator, Synchrotron radiation",

author = "Ryo Masuda and Takaya Mitsui and Keiji Itoh and Kouji Sakaki and Hirotoshi Enoki and Yumiko Nakamura and Makoto Seto",

year = "2012",

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doi = "10.1007/s10751-011-0470-x",

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AU - Masuda, Ryo

AU - Mitsui, Takaya

AU - Itoh, Keiji

AU - Sakaki, Kouji

AU - Enoki, Hirotoshi

AU - Nakamura, Yumiko

AU - Seto, Makoto

PY - 2012/3

Y1 - 2012/3

N2 - 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-GdFe 2H 3 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-GdFe 2H 3.

AB - 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-GdFe 2H 3 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-GdFe 2H 3.

KW - GdFe

KW - Hydrogen desorption

KW - In situ Mössbauer study

KW - Inelastic nuclear resonant scattering

KW - Nuclear monochromator

KW - Synchrotron radiation

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