Surface spectroscopic study of the stabilization mechanism for shape-selectively synthesized nanostructured transition metal colloids

被引：255

作者：

Bradley, JS ^{[1
]}

Tesche, B ^{[1
]}

Busser, W ^{[1
]}

Masse, M ^{[1
]}

Reetz, RT ^{[1
]}

机构：

[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 19期

关键词：

D O I：

10.1021/ja992409y

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Nanoscale palladium and nickel colloids prepared in the presence of certain tetra-n-octylammonium carboxylates contain a high proportion of nonequilibrium trigonal cross section particles. Specifically, those carboxylates which bear a hydroxy function at the a-position, e.g., tetra-n-octylammonium glycolate, exert a strong influence on the shape of the metal colloids. It is shown by an in situ FTIR study of the preparation of colloidal nickel from bis(cyclooctadiene)nickel in the presence of tetra-n-octylammonium glycolate that the interaction of the alpha-hydroxy carboxylate with the surface of the colloidal metal particle is likely to be the morphology-determining factor in the shape-selective preparation of these metal particles.

引用

页码：4631 / 4636

页数：6

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