Preparation of Pd-Pt bimetallic colloids with controllable core/shell structures

被引：255

作者：

Wang, Y ^{[1
]}

Toshima, N ^{[1
]}

机构：

[1] SCI UNIV TOKYO,DEPT MAT SCI & ENGN,ONODA,YAMAGUCHI 756,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 27期

关键词：

D O I：

10.1021/jp9704224

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polymer-protected Pd-Pt bimetallic colloids in the size range 1.5-5.5 nm with controllable core/shell structures have been successfully prepared by a so-called hydrogen-sacrificial protective strategy. The obtained bimetallic colloids were characterized by transmission electron microscopy and infrared carbon monoxide (IR-CO) probe techniques. The Pd-core/Pt-shell and Pt-core/Pd-shell structures were confirmed by IR-CO probe characterization. IR-CO probe measurements were also performed on the Pd-Pt bimetallic colloids prepared by coreduction of the corresponding metal ions in the refluxing mixture of ethanol and water.

引用

页码：5301 / 5306

页数：6

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