Perovskite-like mixed oxides La2-x(Sr,Th)(x)CuO4+/-lambda

被引：1
|
作者：
Liu, CB [1 ]
Zhao, Z [1 ]
Yang, XG [1 ]
Ye, XK [1 ]
Wu, Y [1 ]
机构：
[1] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,CHANGCHUN 130022,PEOPLES R CHINA
来源：
SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY | 1997年 / 40卷 / 11期
关键词：
mixed oxides; hydrogen peroxide; phenol hydroxylation;
D O I：
10.1007/BF02931840
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Two groups of mixed oxides La2-xThxCuO4+/-lambda (0.0 less than or equal to x less than or equal to 0.4) and La2-xSrxCuO4+/-lambda (0.0 less than or equal to x less than or equal to 1.0) were prepared. Their crystal structures were studied with XRD and IR spectra, etc. Meanwhile, the average valence of Cu ions and nonstoichiometric oxygen (lambda) was measured through chemical analyses. Catalysis of the abovementioned mixed oxides was investigated in phenol hydroxylation, good results were obtained for some mixed oxides, and found that the catalysis of these mixed oxides have close relation with their defect structure and composition. A radical substitution mechanism was also proposed for this catalytic reaction.
引用
收藏
页码：1210 / 1215
页数：6
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