THE FORMATION OF HIGHLY DISPERSED SILVER BY THE REDUCTION OF AG+ IONS IN AQUEOUS-SOLUTIONS

被引：0
|
作者：
ROGACH, AL
KHVALYUK, VN
GURIN, VS
机构：
来源：
COLLOID JOURNAL | 1994年 / 56卷 / 02期
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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：
A highly dispersed aqueous colloid of metallic silver was obtained by reducing AgNO3 with NaBH4. Stabilization of the silver sol was achieved by adding sodium trimetaphosphate, polyvinyl alcohol, or some nitrogen- and sulfur-containing surfactants. Small silver clusters were obtained by forming colloidal silver particles on a PVA-based polymer matrix, which impeded oxidation and coagulation of silver particles at early stages of reduction.
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页码：221 / 223
页数：3
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