An α-K3PMo3W9O40 film loaded with silver nanoparticles: Fabrication, characterization and properties

被引：20

作者：

Gu, Ying ^{[1
]}

Ma, Huiyuan ^{[1
]}

O'Halloran, Kevin P. ^{[2
]}

Shi, Shilin ^{[1
]}

Zhang, Zhijing ^{[1
]}

Wang, Xiaoguang ^{[1
]}

机构：

[1] Harbin Normal Univ, Dept Chem, Harbin 150025, Peoples R China

[2] Emory Univ, Dept Chem, Atlanta, GA 30322 USA

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 28期

关键词：

Silver nanoparticles; Polyoxometalates; LBL; Electrochemistry; PMo3W9; HETEROPOLY BLUES; MULTILAYER FILMS; METAL-IONS; REDUCTION; AGGREGATION; COMPLEXES; CATALYSIS; POLYMERS; BEHAVIOR; GOLD;

D O I：

10.1016/j.electacta.2009.06.092

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A composite film consisting of the mixed-addenda Keggin-type polyoxometalate alpha-K3PMo3W9O40 (PMo3W9) and silver nanoparticles (AgNPs) was fabricated on quartz, silicon, and [TO by the layer-by-layer self-assembly method. The regular growth of the multilayer film was monitored by UV-vis spectroscopy, and the morphology was measured by atomic force microscopy (AFM). The multilayer film embedded by AgNPs exhibited the photo-luminescence ascribed to electronic transitions from excited states to d levels of the silver nanoparticles. The composite film also showed electrocatalytic activity towards reduction of NO2-, H2O2, ClO3-, BrO3-, and IO3- attributed to tungsten-centered and molybdenum-centered redox processes Of PMo3W9. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：7194 / 7200

页数：7

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