Platinum-alloy nanostructured thin film catalysts for the oxygen reduction reaction

被引：99

作者：

van der Vliet, Dennis ^{[1
]}

Wang, Chao ^{[1
]}

Debe, Mark ^{[2
]}

Atanasoski, Radoslav ^{[2
]}

Markovic, Nenad M. ^{[1
]}

Stamenkovic, Vojislav R. ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA

[2] 3M Co, Fuel Cell Components Program 3M, St Paul, MN 55144 USA

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 24期

关键词：

Oxygen reduction reaction; Rotating disk electrode; Nanostructured thin film; Fuel cells; MODEL; ELECTROCHEMISTRY; DEGRADATION; STABILITY; SURFACES;

D O I：

10.1016/j.electacta.2011.07.063

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In an effort to study advanced catalytic materials for the oxygen reduction reaction (ORR), a number of metallic alloy nanostructured thin film (NSTF) catalysts have been characterized by rotating disk electrode (RDE). Optimal loadings for the ORR and activity enhancement compared to conventional carbon supported nanoparticles (Pt/C) were established. The most efficient catalyst was found to be PtNi alloy with 55 wt% of Pt. The enhancement in specific activity is more than one order of magnitude, while the improvement factor in mass activity is 2.5 compared to Pt/C. Further lowering of the platinum to nickel ratio in NSTF catalysts did not lead to increased mass activity values. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：8695 / 8699

页数：5

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