Scanning electrochemical microscope characterization of thin film combinatorial libraries for fuel cell electrode applications

被引：40

作者：

Black, M ^{[1
]}

Cooper, J

McGinn, P

机构：

[1] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA

[2] Univ Notre Dame, Ctr Mol Engn Mat, Notre Dame, IN 46556 USA

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2005年 / 16卷 / 01期

关键词：

electrochemistry; scanning electrochemical microscopy; materials processing; films; fuel cell; combinatorial materials;

D O I：

10.1088/0957-0233/16/1/023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pt-Ru combinatorial libraries of potential fuel cell anode catalysts are formed by sequential sputter deposition through masks onto Si wafers. Scanning electrochemical microscopy (SECM) is employed for characterization of electrocatalytic activity. Aspects of using a scanning electrochemical microscope for characterization of an array of thin film fuel cell electrode materials are discussed. It is shown that in applying SECM to library characterization, careful attention must be paid to thin film annealing, specimen topography and tip degradation in order to realize meaningful results. Results from a Pt-Ru thin film library reveal the most active members near the 50 Pt/50 Ru composition.

引用

页码：174 / 182

页数：9

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