Aqueous solutions of colloidal ruthenium: The radiation-chemical preparation and optical absorption

被引：0
|
作者：
Seliverstov, A.F. [1 ]
Sukhov, N.L. [1 ]
Ershov, B.G. [1 ]
机构：
[1] Inst. of Physical Chemistry, RAS, Leninskij pr. 31, Moscow, 119991, Russia
来源：
Kolloidnyj Zhurnal | 2002年 / 64卷 / 06期
关键词：
Radiation chemistry - Reduction - Ruthenium - Ruthenium compounds - Sols - Solutions - Ultraviolet spectroscopy;
D O I：
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摘要：
The radiation-chemical reduction of Ru(III) is studied in aqueous RuCl3 solutions containing isopropyl alcohol. In the presence of sodium polyacrylate, the stable sols of metal are formed with spherical particles 4-8 nm in diameter. The optical spectrum of nanoparticles is characterized by an increasing absorption in the UV spectral region with no maximum (Ε200 = 7.2 × 1030 l mol-1 cm-1). The colloids of ruthenium in an aqueous solution are stable in air.
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页码：858 / 860
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