Immobilization of molybdenum oxide in polyaniline and electrocatalytic properties of the composite modified electrode

被引：18

作者：

Bian, Li-Jun ^{[1
]}

Zhang, Jiang-Hua ^{[1
]}

Qi, Ji ^{[1
]}

Liu, Xiao-Xia ^{[1
]}

Dermot, Diamond ^{[2
]}

Lau, King-Tong ^{[2
]}

机构：

[1] Northeastern Univ, China Ireland Ctr Adv Mat & Sensor Dev, Dept Chem, Shenyang 110819, Peoples R China

[2] Dublin City Univ, China Ireland Ctr Adv Mat & Sensor Dev, Natl Ctr Sensor Res, Sch Chem Sci, Dublin 9, Ireland

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 147卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Electrocatalytic reduction; Chlorate; Molybdenum oxide; Polyaniline; GLASSY-CARBON ELECTRODE; ELECTROCHEMICAL PREPARATION; AMPEROMETRIC DETECTION; THIN-FILMS; IODATE; REDUCTION; OXIDATION; CHLORATE; BROMATE; MOO3;

D O I：

10.1016/j.snb.2010.03.043

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polyaniline and molybdenum oxide composite modified electrode (PANI-MoO3) was prepared through immobilization of the oxide in the polymer matrix. The obtained composite was characterized by XPS and FIR. Stability and electrocatalytic properties of the composite for the reduction of chlorate were investigated by using cyclic voltammetry and chronoamerometry. It was found that the electrocatalytic activity of MoO3 towards the reduction of chlorate is improved by immobilization in PANI. The composite modified electrode showed a quick response time of 10 s to chlorate. Results of amperometric measurements at a working potential of 0.0 V vs. SCE showed that the composite modified electrode displayed linear amperometric responds to chlorate in a concentration range of 5 mu M-10.0 mM with a lower detection limit (LOD) of 1.3 mu M. The stability of MoO3 was also improved through immobilization in PANI. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：73 / 77

页数：5

共 27 条

[21] Modification of glassy carbon electrode with multi-walled carbon nanotubes and iron(III)-porphyrin film: Application to chlorate, bromate and iodate detection [J].