Sonochemical formation of colloidal platinum

被引：60

作者：

Caruso, RA ^{[1
]}

Ashokkumar, M ^{[1
]}

Grieser, F ^{[1
]}

机构：

[1] Univ Melbourne, Sch Chem, Adv Mineral Prod Res Ctr, Parkville, Vic 3052, Australia

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2000年 / 169卷 / 1-3期

基金：

澳大利亚研究理事会;

关键词：

platinum colloids; sonochemistry; ultrasound; nanoparticles; radical reactions;

D O I：

10.1016/S0927-7757(00)00438-6

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：

The ultrasound irradiation of aqueous solutions of PtCl62- was found to produce colloidal platinum of about 3 nm in diameter. The presence of aliphatic alcohols significantly enhanced the reduction process. It is shown that the extent of reduction of PtCl62- in the presence of alcohol is directly related to the Gibbs surface excess of the alcohol at the air-water interface. The significance of this is discussed in relation to ultrasound induced cavitation in solution. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：219 / 225

页数：7

共 31 条

[1] SONOLYSIS OF AQUEOUS SURFACTANT SOLUTIONS - PROBING THE INTERFACIAL REGION OF CAVITATION BUBBLES BY SPIN TRAPPING [J].

ALEGRIA, AE ;

LION, Y ;

KONDO, T ;

RIESZ, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (12) :4908-4913

[2]

[Anonymous], 1968, HALIDES 2 3 ROW TRAN

[3] Sonochemistry and sonoluminescence in aqueous AuCl4- solutions in the presence of surface-active solutes [J].

Barbour, K ;

Ashokkumar, M ;

Caruso, RA ;

Grieser, F .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (43) :9231-9236

[4]

CLINT JH, 1993, FARADAY DISCUSS, V95, P219

[5]

Crum L. A., 1999, NATO ASI SERIES C, V524

[6]

DELCOURT MO, 1983, NOUV J CHIM, V7, P131

[7] H/D ISOTOPE EXCHANGE IN THE D2-H2O SYSTEM UNDER THE INFLUENCE OF ULTRASOUND [J].

FISCHER, CH ;

HART, EJ ;

HENGLEIN, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (02) :222-224

[8]

FLINT EB, 1991, SCIENCE, V253, P1377

[9]

GRANTHAM LF, 1955, J AM CHEM SOC, V77, P2365

[10] Sonochemical reduction processes in aqueous colloidal systems [J].

Grieser, F ;

Hobson, R ;

Sostaric, J ;

Mulvaney, P .

ULTRASONICS, 1996, 34 (2-5) :547-550

← 1 2 3 4 →