高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (8): 855.

• 研究论文 • 上一篇    下一篇

La1-xMxCoO3(M=Ca,Sr)还原性的研究

魏诠, 崔巍, 关世权   

  1. 吉林大学分析测试中心
  • 收稿日期:1988-11-01 出版日期:1990-08-24 发布日期:1990-08-24
  • 通讯作者: 魏诠
  • 基金资助:

    国家自然科学基金

Investigation on the Reduction of La1-xMxCoO3(M=Ca, Sr) Perovskite Oxides

Wei Quan, Cui Wei, Guan Shiquan   

  1. Centre of Analysis and Testing, Jilin University, Changchun
  • Received:1988-11-01 Online:1990-08-24 Published:1990-08-24

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摘要： 以XPS和XRD手段研究了La1-xMxCoO3复合氧化物的还原性质,得到还原程度次序为La1-xSrxCoO3>La1-xCaxCoO3>LaCoO3;相同离子取代系列随x增大,还原容易进行,探讨了取代钴酸镧的氢还原机理。

关键词: 钙铁矿复合氧化物, 还原, X光电子能谱

Abstract: The reduction of La1-xMxCoO3 has been studied by XPS and XRD. The extent of reduction of the perovskite oxides has been obtained as: La1-xSrxCoO3 > La1-xCaxCoO3> LaCoO3; for the same substitution cation, the extent of reduction increases with x. The reduction mechanism of La1-xMxCoO3 was discussed.

Key words: Perovskite oxides, Reduction, XPS

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