Investigation of oxygen reduction at platinum loaded poly(o-phenylenediamine) electrode in acid medium

被引：15

作者：

Gajendran, P. ^{[1
]}

Vijayanand, S. ^{[1
]}

Saraswathi, R. ^{[1
]}

机构：

[1] Madurai Kamaraj Univ, Sch Chem, Dept Mat Sci, Madurai 625021, Tamil Nadu, India

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2007年 / 601卷 / 1-2期

关键词：

electrocatalysis; oxygen reduction; poly(o-phenylenediammine); platinum nanoparticles; platinum nanoparticles deposited platinum;

D O I：

10.1016/j.jelechem.2006.10.038

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical reduction of oxygen at poly(o-phenylenediamine) (PoPD) modified platinum electrode was studied. Platinum particles with a diameter of about 100 nm were electrodeposited onto the polymer matrix. The platinum loading was varied from 3.9 to 175 mu g/cm(2). Experiments have also been carried out on unmodified platinum electrode and platinum particles deposited platinum electrodes for direct comparison. The films were characterized by AM Rotating disc electrode experimental data indicated a one step four electron reduction. It is demonstrated that nearly a seventyfold increase in the oxygen reduction current can be obtained on the platinum incorporated PoPD electrode compared to the bulk platinum electrode. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：132 / 138

页数：7

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