【10/4更新】2022年4月1日からのCiNii ArticlesのCiNii Researchへの統合について

Reversible Transformation between Cu_2O and CuO by Ambient Gas Heat Treatment

抄録

Cu_2O and CuO are typical p-type semiconducting oxides and thus promising for gas sensors. However, heat-treatment necessary for sintering Cu_2O powder into porous thick films in air changes Cu_2O to CuO. As a result, it is not possible to prepare Cu_2O sensors. To this connection the reversible transformation between Cu_2O and CuO is examined. It turns out that CuO can be brought back to Cu_2O by holding CuO in an ambient of ethanol-added air at 330℃ for 1 hr. However, the Cu_2O sample thus obtained is found to be rather insensitive to reductive gases. The CuO samples prepared by sintering Cu_2O in air are satisfactorily potential as p-type semiconducting oxide sensors.

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詳細情報

  • CRID
    1050564287739304320
  • ISSN
    0286-8571
  • Web Site
    http://hdl.handle.net/10461/3119
  • 本文言語コード
    en
  • 資料種別
    departmental bulletin paper
  • データソース種別
    • IRDB
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