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Synthesis's of Rare Earth Sulfides and Its Thermo-Electnc Properties

Research Project

Project/Area Number 13450304
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionMuroran Institute of Technology

Principal Investigator

SHIMAKAGE Kazuyoshi  Murorann Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (70005346)

Co-Investigator(Kenkyū-buntansha) HIRAI Shinj  Murorann Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (10208796)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥13,700,000 (Direct Cost: ¥13,700,000)
Fiscal Year 2003: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥6,700,000 (Direct Cost: ¥6,700,000)
KeywordsRare earth sulfide / Thermo-electric properties / Synthisis / Sulfurization reaction / Zeebeck coefficient / Hot-Press / lanthanam sulfide / Power factor / 熱電変換材料 / La_2S_3焼結体 / 熱電材料 / La2S3焼結体 / 合成 / La_2S_3粉末 / 電極材料
Research Abstract

The formation behaviors of R2S3(R:La,Pr,Nd and Sm) powders in sulfurization of La203,Pr6011,Nd203 and Sm203 powders, respectively, using CS2 gas were examined.
In all cases, R202S which were intermediate products, were formed in the initial stage of reaction, and R2S3 were formed for a shorter period of time at higher temperature instead of R202S. In the Synthesis of La2S3 and Sm2S3, single-phase、β-La2S3 and α-Sm2S3, respectively, were finally prepared.
On the other hand, in the synthesis of Pr2S3 and Nd2S3, α-Pr2S3 and α-Pr2S3 having trace of residual β-Pr2S3 and single β-Pr2S3, respectively, were finally prepared.
In all cases, the impurity contents of oxygen and carbon in reaction products were dependent on the sulfurization conditions.
In finally experiment, the thermo-electric properties for all rare earth sulfides synthesized were measured. As a result, Zeebeck coefficient and the thermo-electric property for lanthanam sulfide were extremely better than other sulfides.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] S.Hirai, K.Shimakage, et al.: "Synthesis and Sintering of Cerium(II) Monosulfide"Journal of American Ceramic Society. Vol.87,No1. 23-28 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Hirai, K.Shimakage, et al.: "Preparation of R2S3 (Ln : La, Pr, Nd, Sm) Powders by Sulfurization of Oxide Powders Using CS2 Gas"Journal of Alloy and Compound. (In press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Ohta, S.Hirai, K.Shimakage, et al.: "Preparation of R2S3 (Ln : La, Pr, Nd, Sm) Powders by Sulfurization of Oxide Powders Using CS2 Gas"Proceedings of Fifth International Conference on f- Elements, Geneva, Switzerland. 24-29 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 平井伸治, 嶋影和宜: "希土類カルコゲナイド硫化物のエネルギー材料への新展開"独立行政法人日本学術振興会、素材プロセッシング第69委員会. 第56回. 37-42 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 太田道弘, 平井伸治, 嶋影和宜: "ランタン三二硫化物粉末の合成と焼結および電気物性"独立行政法人日本学術振興会、素材プロセッシング第69委員会. 第57回. 52-60 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 平井伸治, 嶋影和宜, その他: "CsS2ガス硫化反応によるγ-Pr2S3およびγ-Nd2S3の合成と焼結"日本金属学会誌. 第67巻、6号. 15-21 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Hirai, K.Shimakage et al.: "Synthesis and Sintering of Cerium (II) Monosulfide"Journal of American Ceramic Society. Vol.87, No11. 23-28 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Hirai, K.Shimakage et al.: "Preparation of R2S3 (Re:La,Pr,Nd,Sm ) Powders by Sulfurization of Oxides Powders Using CS2 Gas"Journal of Alloy and Compound. (In press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Ohta, S.Hirai, K.Shimakage et al.: "Preparation of R2S3 (Re:La,Pr,Nd,Sm) Powders by Sulfurization of Oxides Powders Using CS2 Gas"Proceedings of Fifth International Conference on f-elements, Geneva, Switzerland. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Hirai, K.Shimakage: "New Development of Energy Materials for Rare Earth Suffide"Japan Society for the Promotion of Science, 69 Research Committee. No.56. 37-42 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.Ohta, S.Hirai, K.Shimakage: "Synthesis and Sintering of Lanthanum Sulfides and Its Electronic Property"Japan Society for the Promotion of Science, 69 Research Committee. No.57. 52-60 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Hirai, K.Shimakage et al.: "Preparation of γ-Pr2S3 and γ-Nd2S3 Powders by Sulfurization of Pr6011 and Nd203 Pwders Using CS2 Gas, and Their Sintering"Journal of the Japan Institute of Metals. Vol.67, No6. 15-21 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shinji Hirai, Kazuyoshi Simakgae, et al.: "Synthesis and Sintering of Cerium (II) Monosulfide"Journal of American Ceramic Society. Vol.87、No1. 23-28 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shinji Hirai, Kazuyoshi Shimakgae, et al.: "Preparation of R_2S_3 (Ln : La,Pr,Nd,Sm) Powders by Sulfurization of Oxide Powders Using CS_2 Gas"Journal of Alloy and Ccmpound. (In Press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Michihiro Ohta, Shinji Hirai, Kazuyoshi Shimakgae, et al.: "Preparation of R_2S_3(Ln : La,Pr,Nd,Sm) Powders by Sulfurization of Oxide Powders Using CS_2 Gas"Proceedings of Fifth International Conference on f-Elements, Geneva, Switzerland. 24-29 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 平井伸治, 嶋影和宜: "希土類カルコゲナイド硫化物のエネルギー材料への新展開"独立行政法人 日本学術振興会、素材プロセッシング第69委員会. 第56回. 37-42 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大田道弘, 平井伸治, 嶋影和宜: "ランタン三二硫化物粉末の合成と焼結および電気物性"独立行政法人 日本学術振興会、素材プロセッシング第69委員会. 第57回. 52-60 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 平井伸治, 嶋影和宜, その他: "CS_2ガス硫化反応によるγ-Pr_2S_3およびγ-Nd_2S_3の合成と焼結"日本金属学会誌. 第67巻、6号. 15-21 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Hirai, K.Shimakage, et al.: "Synthesis and Sintering of Cerium(III) Sulfide Powders"Journal of American Ceramic Society. Vol.81,1. 145-151 (1998)

    • Related Report
      2002 Annual Research Report
  • [Publications] 平井伸二, 嶋影和宜, 上村揚一郎: "ランタナイド系二元系硫化物の合成と焼結"金属. 70巻、8号. 629-636 (2000)

    • Related Report
      2002 Annual Research Report
  • [Publications] 平井伸二, 嶋影和宜, 上村揚一郎: "耐火材料や熱電材料として期待されるランタナイド系二元系硫化物"金属. 70巻、11号. 960-965 (2000)

    • Related Report
      2002 Annual Research Report
  • [Publications] 平井伸二, 嶋影和宜, その他: "CS2ガス硫化反応によるγ-Pr2S3およびγ-Nd2S3粉末の合成と焼結"日本金属学会誌. 66巻、1号. 15-21 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 平井伸治, 嶋影和宜: "ランタナイド系二元硫化物の合成と焼成"金属. 第70巻8号. 629-636 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] 平井伸治, 嶋影和宜: "耐火材料や熱電材料として期待されるランタナイド系二元硫化物"金属. 第70巻11号. 960-965 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Hirai and K.Shimakage: "Synthesis of La_2S_3 and Its Thermoelectronic Properties"Pro. Sec. Inter. Conf. Mater. Property, San Fransico, USA. 925-928 (2000)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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