UNIFORM COLLOIDS OF RUTHENIUM DIOXIDE HYDRATE EVOLVED BY THE SURFACE-CATALYZED REDUCTION OF RUTHENIUM TETROXIDE

被引：7

作者：

MCMURRAY, HN

机构：

[1] Chemistry Department, University College Swansea, Swansea, SA2 8PP, Singleton Park

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 30期

关键词：

D O I：

10.1021/j100132a038

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：

Hydrosols of ruthenium dioxide hydrate comprising substantially monodisperse, spherical, and pristine submicron particles have been synthesized by the reduction of aqueous ruthenium tetroxide. Subsequent to nucleation, colloidal particles grow spontaneously by heterogeneously catalyzing the reduction of ruthenium tetroxide by water. The kinetics of the growth process are described and a mechanism proposed whereby particles act as microelectrodes, coupling the anodic oxidation of water and the cathodic reduction of ruthenium tetroxide. Observed trends in particle size and size distribution are discussed in relation to the kinetic law of particle growth.

引用

页码：8039 / 8045

页数：7

共 30 条

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[2]

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