Synthesis of Sc sulfides by CS2 sulfurization

Takumi Kaneko; Yuta Yashima; Eltefat Ahmadi; Shungo Natsui; Ryosuke O. Suzuki

doi:10.1016/j.jssc.2020.121268

Synthesis of Sc sulfides by CS₂ sulfurization

Takumi Kaneko, Yuta Yashima, Eltefat Ahmadi, Shungo Natsui, Ryosuke O. Suzuki

Division of Process and System Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Scandium sulfides were synthesized from its stable oxide, Sc₂O₃, using CS₂ gas. Suitable temperature and time for synthesis were examined experimentally using a constant flow rate of gas mixture of Ar and CS₂. The high rate of evaporation from liquid CS₂ enhanced formation and stoichiometry of sulfides, and eliminated impurity carbon. Most of parts in the sample were converted to Sc₂S₃ at 1473 K for 7.2 ks, and a transient phase of Sc₂O₂S was often synthesized after a prolonged time under certain oxygen and sulfur potentials.

Original language	English
Article number	121268
Journal	Journal of Solid State Chemistry
Volume	285
DOIs	https://doi.org/10.1016/j.jssc.2020.121268
Publication status	Published - 2020 May

Keywords

CS gas sulfurization
Gas-solid reactions
Rare earth compounds
Synthesis of scandium sulfides

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jssc.2020.121268

Cite this

@article{d554f111ff204c5da9b96f6f2bf80320,

title = "Synthesis of Sc sulfides by CS2 sulfurization",

abstract = "Scandium sulfides were synthesized from its stable oxide, Sc2O3, using CS2 gas. Suitable temperature and time for synthesis were examined experimentally using a constant flow rate of gas mixture of Ar and CS2. The high rate of evaporation from liquid CS2 enhanced formation and stoichiometry of sulfides, and eliminated impurity carbon. Most of parts in the sample were converted to Sc2S3 at 1473 K for 7.2 ks, and a transient phase of Sc2O2S was often synthesized after a prolonged time under certain oxygen and sulfur potentials.",

keywords = "CS gas sulfurization, Gas-solid reactions, Rare earth compounds, Synthesis of scandium sulfides",

author = "Takumi Kaneko and Yuta Yashima and Eltefat Ahmadi and Shungo Natsui and Suzuki, {Ryosuke O.}",

note = "Funding Information: The authors thank to Dr. Hirotaka Higuchi at Sumitomo Metal Mining Co., Ltd for his good discussion, and Mr. Nobuyuki Miyazaki for the technical supports of SEM observation at Office for the Promotion of Nanotechnology Collaborative Research, Hokkaido University. This work was financially supported in part by Grants-in-Aid from the Ministry of Education, Science and Sports (KAKENHI 17H0343409 and 18F1805409 ), the Japan Mining Industries Association , and Sumitomo Metal Mining Co., Ltd . The financial support of Japan Society for the Promotion of Science (JSPS) for research in Japan (Standard, P18054 ) is also acknowledged. Funding Information: The authors thank to Dr. Hirotaka Higuchi at Sumitomo Metal Mining Co. Ltd for his good discussion, and Mr. Nobuyuki Miyazaki for the technical supports of SEM observation at Office for the Promotion of Nanotechnology Collaborative Research, Hokkaido University. This work was financially supported in part by Grants-in-Aid from the Ministry of Education, Science and Sports (KAKENHI 17H0343409 and 18F1805409), the Japan Mining Industries Association, and Sumitomo Metal Mining Co. Ltd. The financial support of Japan Society for the Promotion of Science (JSPS) for research in Japan (Standard, P18054) is also acknowledged. Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

year = "2020",

month = may,

doi = "10.1016/j.jssc.2020.121268",

language = "English",

volume = "285",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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T1 - Synthesis of Sc sulfides by CS2 sulfurization

AU - Kaneko, Takumi

AU - Yashima, Yuta

AU - Ahmadi, Eltefat

AU - Natsui, Shungo

AU - Suzuki, Ryosuke O.

N1 - Funding Information: The authors thank to Dr. Hirotaka Higuchi at Sumitomo Metal Mining Co., Ltd for his good discussion, and Mr. Nobuyuki Miyazaki for the technical supports of SEM observation at Office for the Promotion of Nanotechnology Collaborative Research, Hokkaido University. This work was financially supported in part by Grants-in-Aid from the Ministry of Education, Science and Sports (KAKENHI 17H0343409 and 18F1805409 ), the Japan Mining Industries Association , and Sumitomo Metal Mining Co., Ltd . The financial support of Japan Society for the Promotion of Science (JSPS) for research in Japan (Standard, P18054 ) is also acknowledged. Funding Information: The authors thank to Dr. Hirotaka Higuchi at Sumitomo Metal Mining Co. Ltd for his good discussion, and Mr. Nobuyuki Miyazaki for the technical supports of SEM observation at Office for the Promotion of Nanotechnology Collaborative Research, Hokkaido University. This work was financially supported in part by Grants-in-Aid from the Ministry of Education, Science and Sports (KAKENHI 17H0343409 and 18F1805409), the Japan Mining Industries Association, and Sumitomo Metal Mining Co. Ltd. The financial support of Japan Society for the Promotion of Science (JSPS) for research in Japan (Standard, P18054) is also acknowledged. Publisher Copyright: © 2020 Elsevier Inc.

PY - 2020/5

Y1 - 2020/5

N2 - Scandium sulfides were synthesized from its stable oxide, Sc2O3, using CS2 gas. Suitable temperature and time for synthesis were examined experimentally using a constant flow rate of gas mixture of Ar and CS2. The high rate of evaporation from liquid CS2 enhanced formation and stoichiometry of sulfides, and eliminated impurity carbon. Most of parts in the sample were converted to Sc2S3 at 1473 K for 7.2 ks, and a transient phase of Sc2O2S was often synthesized after a prolonged time under certain oxygen and sulfur potentials.

AB - Scandium sulfides were synthesized from its stable oxide, Sc2O3, using CS2 gas. Suitable temperature and time for synthesis were examined experimentally using a constant flow rate of gas mixture of Ar and CS2. The high rate of evaporation from liquid CS2 enhanced formation and stoichiometry of sulfides, and eliminated impurity carbon. Most of parts in the sample were converted to Sc2S3 at 1473 K for 7.2 ks, and a transient phase of Sc2O2S was often synthesized after a prolonged time under certain oxygen and sulfur potentials.

KW - CS gas sulfurization

KW - Gas-solid reactions

KW - Rare earth compounds

KW - Synthesis of scandium sulfides

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