高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (3): 454.

• 论文 • 上一篇    下一篇

稀土取代的复合氧化物Eu0.5RE0.5Fe0.5Mn0.5O3的XPS研究

任孝林1, 李莉萍1, 魏诠2   

  1. 1. 吉林大学化学系、物理系, 长春 130023;
    2. 吉林大学分析测试中心, 长春 130023
  • 收稿日期:1994-05-18 修回日期:1994-10-23 出版日期:1995-03-24 发布日期:1995-03-24
  • 通讯作者: 魏诠
  • 作者简介:任孝林,男,26岁,讲师.
  • 基金资助:

    国家自然科学基金

The XPS Study of Complex Oxides Eu0.5RE0.5Fe0.5Mn0.5O3

REN Xiao-Lin1, LI Li-Ping1, WEI Quan2   

  1. 1. Department of Chemistry, Department of Physics Analysis, Jilin University, Changchun 130023;
    2. Measurement Center, Jilin University, Changchun 130023
  • Received:1994-05-18 Revised:1994-10-23 Online:1995-03-24 Published:1995-03-24

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摘要： 利用固相反应合成了稀土取代的复合氧化物Eu0.5RE0.5Fe0.5Mn0.5O3(RE=La,Pr,Nd,Sm,Gd,Tb,Dy,Ho,Er,Tm,Yb).测量了这些化合物的XRD和XPS谱。在XPS研究中发现,稀土取代而使稀土元素本身的结合能相对于其倍半氧化物中的有所降低;在取代的复合氧化物中,随着RE离子半径的减小,Fe2p3/2、Mn2p3/2的结合能随之增加。

关键词: Eu0.5RE0.5Fe0.5Mn0.5O3, XPS, 结合能变化

Abstract: Complex oxides replaced by rare earth ions, Eu0.5RE0.5Fe0.5Mn0.5O3(RE=La, Pr,Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb) were prepared by the solid state reaction method.Measurements by XRD and XPS were carried out. The study of XPS indicates that the replacement by rare earth causes the decrease of the binding energy(B. E. )of rare earth ions,compared to their sequioxides. And in the replaced oxides, the binding energy of Fe2p3/2and Mn2p3/2 increases with the decrease of ion radius of REion. The reasons for the changes of B.E. are discussed.

Key words: Eu0.5RE0.5Fe0.5Mn0.5O3, XPS, Changes of binding energy

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