Characterization of durable nanostructured thin film catalysts tested under transient conditions using analytical aberration-corrected electron microscopy

被引：6
作者：
Cullen, D. A. [1 ]
More, K. L. [1 ]
Reeves, K. S. [1 ]
Vernstrom, G. D. [2 ]
Atanasoska, L. L. [2 ]
Haugen, G. M. [2 ]
Atanasoski, R. T. [2 ]
机构：
[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA
[2] 3M Fuel Cell Components, 3M Cent Res, St Paul, MN 55144 USA
来源：
POLYMER ELECTROLYTE FUEL CELLS 11 | 2011年 / 41卷 / 01期
关键词：
D O I：
10.1149/1.3635642
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The stability of Ru0.1Ir0.9 oxidation evolution reaction (OER) catalysts deposited on Pt-coated nanostructured thin films (NSTFs) has been investigated by aberration-corrected electron microscopy. Accelerated stress tests showed that the OER catalysts significantly improved the durability of the Pt under cell reversal conditions. High-resolution images of the end-of-life NSTFs showed significant Ir loss from the whisker surfaces, while no Pt loss was observed. The retention of the Pt indicated that the OER catalysts had protected the catalyst-coated whisker surfaces from degradation.
引用
收藏
页码：1099 / 1103
页数：5
相关论文
共 7 条
  • [1] Durability and degradation issues of PEM fuel cell components
    de Bruijn, F. A.
    Dam, V. A. T.
    Janssen, G. J. M.
    [J]. FUEL CELLS, 2008, 8 (01) : 3 - 22
  • [2] Debe M., 2003, Handbook of Fuel Cells- Fundamentals, Technology, and Applications, V3, P576
  • [3] High voltage stability of nanostructured thin film catalysts for PEM fuel cells
    Debe, Mark K.
    Schmoeckel, Alison K.
    Vernstrorn, George D.
    Atanasoski, Radoslav
    [J]. JOURNAL OF POWER SOURCES, 2006, 161 (02) : 1002 - 1011
  • [4] Crystallographic characteristics of nanostructured thin-film fuel cell electrocatalysts: A HRTEM study
    Gancs, Lajos
    Kobayashi, Takeshi
    Debe, Mark K.
    Atanasoski, Radoslav
    Wieckowski, Andrzej
    [J]. CHEMISTRY OF MATERIALS, 2008, 20 (07) : 2444 - 2454
  • [5] Electrochemical characterisation of IrxSn1-xO2 powders as oxygen evolution electrocatalysts
    Marshall, A
    Borresen, B
    Hagen, G
    Tsypkin, M
    Tunold, R
    [J]. ELECTROCHIMICA ACTA, 2006, 51 (15) : 3161 - 3167
  • [6] Nelson A., 2010, 12 ULM EL TALKS ULM
  • [7] Development of Catalysts with Enhanced Tolerance to Fuel Cell Transient Conditions
    Stevens, D. A.
    Sanderson, R. J.
    Hatchard, T. D.
    Crowtz, T.
    Dahn, J. R.
    Vernstrom, G.
    Haugen, G. M.
    Watschke, T.
    Atanasoska, L. L.
    Atanasoski, R. T.
    [J]. POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2, 2010, 33 (01): : 419 - +
1