Oxygen reduction reaction on the low index planes of palladium electrodes modified with a monolayer of platinum film

被引：30

作者：

Hoshi, Nagahiro ^{[1
]}

Nakamura, Masashi ^{[1
]}

Kondo, Shinpei ^{[1
]}

机构：

[1] Chiba Univ, Grad Sch Engn, Dept Appl Chem & Biotechnol, Inage Ku, Chiba 2638522, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 12期

关键词：

Oxygen reduction reaction; Palladium; A monolayer of platinum film; Low index planes; Structural effect; SINGLE-CRYSTAL ELECTRODES; ROTATING-DISK HMRD; STEPPED SURFACES; O-2; REDUCTION; ELECTROCATALYSTS; VOLTAMMOGRAMS;

D O I：

10.1016/j.elecom.2009.10.010

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Oxygen reduction reaction (ORR) has been studied on the low index planes of Pd modified with a monolayer of Pt (Pt/Pd(hkl)) in 0.1 M HClO4 with the use of hanging meniscus rotating disk electrode. The activity for ORR on bare Pd(hkl) electrode depends on the surface structure strongly, however, voltammograms of ORR on Pt/Pd(hkl) electrodes do not depend on the crystal orientation. The specific activities of Pt/Pd(hkl) electrodes at 0.90 V (RHE) are higher than that on Pt(110) which has the highest activity for ORR in the low index planes of Pt. The mass activity on Pt/Pd(hkl) electrode is 7 times as high as a commercial Pt/C catalyst. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2282 / 2284

页数：3

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