Formation of gold nanoparticles in zeolites

被引：41

作者：

Pestryakov, A ^{[1
]}

Tuzovskaya, I

Smolentseva, E

Bogdanchikova, N

Jentoft, FC

Knop-Gericke, A

机构：

[1] Tomsk Polytech Univ, Tomsk 634050, Russia

[2] Ctr Ciencias Mat Condensada, Ensenada 22800, Baja California, Mexico

[3] Fritz Haber Inst, D-14195 Berlin, Germany

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2005年 / 19卷 / 15-17期

关键词：

gold catalysts; nanoparticles; zeolites; FTIR; UV-visible spectroscopy;

D O I：

10.1142/S0217979205030918

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The formation of gold nanoparticles. in mordenites has been studied by the methods of FTIR spectroscopy of adsorbed CO and diffuse reflectance UV-visible spectroscopy. Different states of ionic and metallic gold were detected in the zeolite cavities and on the external surface of the zeofite - Au+ and Au3+ ions, charged clusters Au-n(delta+) and neutral nanoparticles Au-m.. The relative arnount of these states depends on the method of sample preparation, type of redox treatment and the SiO2/Al2O3 molar ratio.

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页码：2321 / 2326

页数：6

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