PREPARATION OF BIMETALLIC PD-PT COLLOIDS IN ORGANIC-SOLVENT BY SOLVENT-EXTRACTION REDUCTION

被引：98

作者：

ESUMI, K ^{[1
]}

SHIRATORI, M ^{[1
]}

ISHIZUKA, H ^{[1
]}

TANO, T ^{[1
]}

TORIGOE, K ^{[1
]}

MEGURO, K ^{[1
]}

机构：

[1] SCI UNIV TOKYO, INST COLLOID & INTERFACE SCI, SHINJUKU KU, TOKYO 162, JAPAN

来源：

LANGMUIR | 1991年 / 7卷 / 03期

关键词：

D O I：

10.1021/la00051a007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pd-Pt bimetallic colloids were prepared by reduction of their corresponding salts extracted in organic solvents (cyclohexane, chloroform) with hydrazine or sodium boron hydride. Two extractants were used: trioctylphosphine oxide (TOPO) and distearyldimethylammonium chloride (DDAC). In both organic solvents, the particle size of Pd-Pt colloids depended on the feed molar fraction of Pd using hydrazine, but almost was independent on the feed molar fraction of Pd using boron hydride. The dispersion stability of Pd-Pt colloids increased as the particle size decreased.

引用

页码：457 / 459

页数：3