Silver clusters and nanoparticles: Preparation in water-in-oil microemulsions and some physical properties

被引：0
|
作者：
Pavlyukhina, LA
Zaikova, TO
Odegova, GV
Savintseva, SA
Boldyrev, VV
机构：
[1] Russian Acad Sci, Inst Solid State Chem & Mineral Proc, Siberian Div, Novosibirsk 630091, Russia
[2] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Div, Novosibirsk 630090, Russia
[3] Russian Acad Sci, Inst Inorgan Chem, Siberian Div, Novosibirsk 630090, Russia
来源：
INORGANIC MATERIALS | 1998年 / 34卷 / 02期
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Silver clusters and colloidal nanoparticles were prepared by reducing AgNO3 with sodium hypophosphite in water-in-oil microemulsions in the presence of a mixture of ethoxylated alkylphenols as a surface-active substance (SAS). Ag/SAS/AL(2)O(3) materials containing 0.04-0.13 wt % Ag were prepared by applying the microemulsions to an Al2O3 support and studied by diffuse reflection electronic spectroscopy, small-angle x-ray scattering, and x-ray diffraction. Ag particles in Ag/SAS/Al2O3 materials have a mean size of similar or equal to 70 Angstrom. The absorption band at 385 nm in the electronic spectra indicates that the nanoparticles consist of isolated clusters.
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页码：109 / 113
页数：5
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