STRUCTURAL-ANALYSIS OF POLYMER-PROTECTED PD/RH BIMETALLIC CLUSTERS BY USING EXAFS SPECTROSCOPY

被引：10

作者：

HARADA, M ^{[1
]}

ASAKURA, K ^{[1
]}

TOSHIMA, N ^{[1
]}

机构：

[1] UNIV TOKYO,FAC SCI,DEPT CHEM,BUNKYO KU,TOKYO 113,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷

关键词：

COLLOIDAL DISPERSION; PD/RH BIMETALLIC CLUSTER CATALYST; EXAFS; PD CLUSTER; RH CLUSTER;

D O I：

10.7567/JJAPS.32S2.451

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The colloidal dispersions of the palladium-rhodium bimetallic clusters, prepared by refluxing the solution of their salts in water/ethanol in the presence of poly(N-vinyl-2-pyrrolidone) under nitrogen, are analyzed by EXAFS spectroscopy, showing that the bond distance between the Pd atom and Rh atom in the cluster is about 2.70 angstrom on the basis of the EXAFS measurements of the Pd/Rh alloy foils. The coordination numbers of the Pd/Rh dispersions indicate that the small particles in size mainly consist of Pd/Rh bimetallic clusters and the large particles, of palladium clusters.

引用

页码：451 / 453

页数：3

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