DETERMINATION OF PARTICLE DISTRIBUTION IN SUPPORTED METAL-CATALYSTS BY SMALL-ANGLE SCATTERING

被引:13
作者
ESPINAT, D [1 ]
MORAWECK, B [1 ]
LARUE, JF [1 ]
RENOUPREZ, AJ [1 ]
机构
[1] INST RECH CATALYSE,2 AVE ALBERT EINSTEIN,F-69626 VILLEURBANNE,FRANCE
关键词
CATALYSTS - X-Ray Analysis;
D O I
10.1107/S0021889884011493
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A method of processing X-ray small-angle data for a three-phase system, based on the hypothesis formulated by Goodisman, Brumberger & Cupelo has been extended to the determination of the polydispersity of one phase. For supported metal catalysts, the characterization of the metal phase is obtained from its correlation function evaluated from a balanced subtraction between those of the catalyst and of the support, measured in two separate experiments. A fairly good agreement with electron microscopy data is obtained.
引用
收藏
页码:269 / 272
页数:4
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