Synthesis, crystal structure refinement and electrical properties of uranium oxysulfide, UOS

Nobuaki Sato; Hidetoshi Masuda; Makoto Wakeshima; Kohta Yamada; Takeo Fujino

doi:10.1016/S0925-8388(97)00285-5

Synthesis, crystal structure refinement and electrical properties of uranium oxysulfide, UOS

Nobuaki Sato, Hidetoshi Masuda, Makoto Wakeshima, Kohta Yamada, Takeo Fujino

多元物質科学研究所・プロセスシステム工学研究部門

研究成果: Article › 査読

17 被引用数 (Scopus)

抄録

Gas-solid reactions of UO₂SO₄ with H₂, H₂S and CS₂ to form uranium (IV) oxysulfide, UOS, as a single phase were studied on the basis of thermodynamical analysis of these reactions. H₂S was proved to be the best reaction agent. The reaction of UO₂SO₄ with CS₂ resulted in the formation of UOS and US₂ mixtures. A refinement of the crystal structure of UOS was made giving isotropic temperature factors and a smallest R value of 1.71%. The obtained UOS showed a p-type semi-conductivity with activation energy 67.5 meV.

本文言語	English
ページ（範囲）	115-120
ページ数	6
ジャーナル	Journal of Alloys and Compounds
巻	265
号	1-2
DOI	https://doi.org/10.1016/S0925-8388(97)00285-5
出版ステータス	Published - 1998 1月 30

ASJC Scopus subject areas

材料力学
機械工学
金属および合金
材料化学

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10.1016/S0925-8388(97)00285-5

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title = "Synthesis, crystal structure refinement and electrical properties of uranium oxysulfide, UOS",

abstract = "Gas-solid reactions of UO2SO4 with H2, H2S and CS2 to form uranium (IV) oxysulfide, UOS, as a single phase were studied on the basis of thermodynamical analysis of these reactions. H2S was proved to be the best reaction agent. The reaction of UO2SO4 with CS2 resulted in the formation of UOS and US2 mixtures. A refinement of the crystal structure of UOS was made giving isotropic temperature factors and a smallest R value of 1.71%. The obtained UOS showed a p-type semi-conductivity with activation energy 67.5 meV.",

keywords = "Crystal structure, Electrical conductivity, Oxysulfide, Sulfurization, Uranium",

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T1 - Synthesis, crystal structure refinement and electrical properties of uranium oxysulfide, UOS

AU - Sato, Nobuaki

AU - Masuda, Hidetoshi

AU - Wakeshima, Makoto

AU - Yamada, Kohta

AU - Fujino, Takeo

PY - 1998/1/30

Y1 - 1998/1/30

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AB - Gas-solid reactions of UO2SO4 with H2, H2S and CS2 to form uranium (IV) oxysulfide, UOS, as a single phase were studied on the basis of thermodynamical analysis of these reactions. H2S was proved to be the best reaction agent. The reaction of UO2SO4 with CS2 resulted in the formation of UOS and US2 mixtures. A refinement of the crystal structure of UOS was made giving isotropic temperature factors and a smallest R value of 1.71%. The obtained UOS showed a p-type semi-conductivity with activation energy 67.5 meV.

KW - Crystal structure

KW - Electrical conductivity

KW - Oxysulfide

KW - Sulfurization

KW - Uranium

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Synthesis, crystal structure refinement and electrical properties of uranium oxysulfide, UOS

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