Electrochemical Studies of Unsupported PtIr Electrocatalyst as Bifunctional Oxygen Electrode in Unitized Regenerative Fuel Cell (URFC)

被引：5

作者：

Jung, Ho-Young ^{[1
]}

Park, Sehkyu ^{[1
]}

Ganesan, Prabhu ^{[1
]}

Popov, Branko N. ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem Engn, Columbia, SC 29208 USA

来源：

PROTON EXCHANGE MEMBRANE FUEL CELLS 8, PTS 1 AND 2 | 2008年 / 16卷 / 02期

关键词：

D O I：

10.1149/1.2981953

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochemical characteristics of unsupported PtIr black catalysts with various compositions were investigated by CV, LSV, and polarization techniques. The catalyst composition of 85 wt. % Pt and 15 wt. % Ir shows higher oxygen evolution reactivity and comparable electrochemical activity to the unsupported Pt black catalyst. Based on the electrochemical characteristics, URFC using the 85Pt:15Ir catalyst shows higher round-trip efficiency than that of unsupported Pt black catalyst at different current densities.

引用

页码：1117 / 1121

页数：5

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