Acta Chimica Sinica ›› 1993, Vol. 51 ›› Issue (4): 373-378. Previous Articles     Next Articles

Original Articles

四方晶系La2-xSrxNiO4复合氧化物结构与性能的研究

郑洪元;杜少斌;吕光烈;楼辉;马福泰;王瑾   

  1. 杭州大学化学系;浙江工学院化学工程系
  • 出版日期:1993-04-15 发布日期:1993-04-15

Investigation on the structure and properties of La2-xSrxNiO4 oxides with tetrahedron K2NiF4 structure

ZHENG HONGYUAN;DU SHAOBIN;LU GUANGLIE;LOU HUI;MA FUTAI;WANG JIN   

  • Online:1993-04-15 Published:1993-04-15

Structure refinement of power x-ray diffraction data shows that when x changes from 0.01 to 1.0, the crystal lattice is La2-xSrxNiO4 has cation (La, Sr) and anion O(1) deficiency. It agrees with the prediction of the values of temperature factor (B). In addition, the content of Ni3+ ion parallels with the order of catalytic activities for CO oxidation At x = 0.5 the John-Teller distortion of BO6 octahedra appears, the max. value, as was expected from the results of axial ratio c/a.

Key words: CRYSTAL STRUCTURE, X-RAY DIFFRACTION ANALYSIS, STRUCTURE AND PROPERTY CORRELATION, LANTHANUM OXIDE, DOUBLE OXIDE, STRONTIUM OXIDE, CATALYTIC ACTIVITY

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