Coating noble metal nanocrystals (Ag, Au, Pd, and Pt) on polystyrene spheres via ultrasound irradiation

被引：162

作者：

Pol, VG

Grisaru, H

Gedanken, A ^{[1
]}

机构：

[1] Bar Ilan Univ, Ctr Adv Mat & Nanotechnol, Dept Chem, IL-52900 Ramat Gan, Israel

[2] Bar Ilan Univ, Ctr Adv Mat & Nanotechnol, Kanbar Lab Nanomat Bar Ilan, IL-52900 Ramat Gan, Israel

来源：

LANGMUIR | 2005年 / 21卷 / 08期

关键词：

D O I：

10.1021/la047465d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The method of ultrasound irradiation is used for anchoring metallic nanocrystals (Ag, Au, Pd, and Pt) onto the surface of polystyrene spheres. In former studies, almost all the sonochemically prepared, coated metallic nanomaterials were formed as amorphous nanoparticles (Pol, V. G.; et al. Langmuir 2002, 18, 3352; Pol, V. G.; et al. Chem. Mater. 2003,15, 1111; Zhong, Z. Y.; et.al. Chem. Mater. 1999,11 (9), 2350; Pol, V. G.; et al. Chem. Mater. 2003, 15, 1378), which were coated on various substrates (silica spheres, carbon spherules, titania, and alumina). On the other hand, the noble metal nanoparticles deposited on polystyrene spheres via ultrasound irradiation yielded nanocrystalline Ag, Au, Pd, and Pt particles on the surface of polystyrene as as-synthesized materials. The sonochemical mechanism is proposed based on chemical interactions between the particles.

引用

页码：3635 / 3640

页数：6

共 22 条

[1] Carbons as supports for industrial precious metal catalysts [J].