Electrochemical characterisation of platinum nanoparticles prepared by microemulsion:: how to clean them without loss of crystalline surface structure

被引：196

作者：

Solla-Gullón, J ^{[1
]}

Montiel, V ^{[1
]}

Aldaz, A ^{[1
]}

Clavilier, J ^{[1
]}

机构：

[1] Univ Alicante, Grp Electroquim Aplicada, Dept Quim Fis, E-03080 Alicante, Spain

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2000年 / 491卷 / 1-2期

关键词：

platinum nanoparticles; single crystal platinum electrodes; microemulsion;

D O I：

10.1016/S0022-0728(00)00306-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new process to clean nanoparticles of platinum obtained by a water-in-oil (W/O) microemulsion without loss of crystalline structure was studied. Polyethyleneglycol-dodecylether (BRIJ(R)30) was the surfactant used for the preparation of the platinum particles. Pt(111), Pt(110), Pt(100) and polyoriented platinum electrodes were used to check the effectiveness of this new procedure. Preliminary results obtained with nanoparticles of platinum are also presented. The voltammetric profiles of platinum particles show the adsorption states associated with (110), (100) and (111) domains. The ratio Pt-SURF/Pt-TOT was found to be 0.1 for an upper potential limit of 1 V and 0.12 for an upper potential limit of 1.5 V. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 77

页数：9

共 22 条

[1] STUDY OF THE RELATIONSHIP BETWEEN VOLTAMMETRIC BEHAVIOR AND ELECTROCATALYTIC ACTIVITY IN THE REDUCTION OF CLO4(-) IONS AT PLATINIZED PLATINUM-ELECTRODES [J].